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do you think that by swapping the inlet to the back of the carb has made this problem?

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i i ran down the street about 3miles and back to the house,

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so when i blow on the line, should i not have any
resistance, should i not notice any resistance?

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Just get a metal Wix in-line, you will feel resistance "some" untill you push the fuel back in the tank & all your blowing is air, then it should be alot easier to blow through, basically just like blowing through a hose pushing water untill it emptys, then its much easier, as you know its "physics", blowing air is alot easier then blowing liguid, but once the liguids out all thats left is air, then it becomes much easier, sure your going to have "some" resistance (even with all air) because its a long line with bends & turns & 5/16 in diameter, but if its clogged/clogging somewhere you'll know it, i'm sure it is because your having a serious issue getting fuel.

Now if you want to check the FP & or (Rod for wear), just stick a long hose in a gas can & run it to the inlet side of the pump, then put the outlet to another gas can & see how much volume it delivers, of coarse its "best" to do this after the engine is warm & the carb is full of fuel, this way it'll idle for a minute or 2, you'll know if thats all good, if so you can rule out the Pump & Rod... Just be careful when messing with fuel, keep it away from fans/electrical ect..

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this pic is after the engine has set for about 2 to 3hours, see the fuel filter is full, however once it heats up, the fuel filter gets empty and bubbles

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everybody i have talked with has said i do not have vapor lock, the car is only running at about 180on temp gauge , and i have not run the car long enough are driven enough miles to actually have vapor lock, i have narrowed it down to , something to do with the fuel pump, maybe the fuel pump rod or the lobe on the cam, however is brand new cam, or the sending unit in the tank is stopped up, i am going to test for the sending you by running the car from a gas can and i will post the results

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Your doing good , i would've choosed a "metal" filter over that plastic one though, so its something to think about, now as for the "bubbles" that you are seeing, I'll bet its just "air" NOT vapor lock, your obviously not running it long enough for vapor lock from "heat", but because theres starvation in the lines, its causeing "cavitation" & air.

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okay, i by passed the gas tank with a plastic container, the fuel pump is not pulling fuel into the fuel filter, or lets say the fuel pump is not keeping the fuel filter full of fuel, it will idle and i did not run it till normal temp, however,is the fuel filter suppose to be full of fuel at idle?

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okay, i by passed the gas tank with a plastic container, the fuel pump is not pulling fuel into the fuel filter, or lets say the fuel pump is not keeping the fuel filter full of fuel, it will idle and i did not run it till normal temp, however,is the fuel filter suppose to be full of fuel at idle?

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In most cases it "will not" keep the filter completely full.

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I've seen alot of em w as much fuel in the filter as the one in the last pic.

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W women it's all in the timing.

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Got that right , they can & WILL be nasty when pravoked !!!!

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so i need to take the rod out and just measure the rod?

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i checked the rod when i put the new pump on, it did look mushroomed, however i did not take it out and measure it

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I did not think i needed to replace since it was a daily driver for so long, i guess i am going to go ahead and replace the tank, sending unit and the fuel line? i have attached a pic. of the fuel filter while running from a hose put in a gas can, i let it run till normal temp of engine and it never fell before half full, is this where the fuel is suppose to be on this type of fuel filter?

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do you think this gas is the problem?

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here is pic of the sending unit, the inter gas tank is perfect, no rust and no dirt, no need to replace the tank,

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I'll bet anything "once" you find the problem its going to end up being something you over-looked & simple.

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I'll bet anything "once" you find the problem its going to end up being something you over-looked & simple.

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Yeah we're gonna be shakin our heads when we find it, k.i.s.s. rarely fails. Plus Randy's neighbor lady wont know how to handle all the peace & quiet.

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heres the new set up on carb

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Pull the rod out already!

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Feeding your fuel pump from an external source shoud have eliminated the lines tank ect. the run time is not long enough for vapor lock it sounds too me like a fuel delivery issue.

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i checked the rod when i put the new pump on, it did look mushroomed, however i did not take it out and measure it

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i checked the rod when i put the new pump on, it did look mushroomed, however i did not take it out and measure it

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The end of the rod that goes bad you can not see unless you pull it from the block or pull out the cam and push it up .

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i shined a light in the fuel pump hole and the rod seem to be fine and put my finger on it and it seem to fine

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the only good thing, i have narrowed the orange gas to the hard line between the tank and the fuel pump, i think all i need to do is replace this line and make sure the clamps are on all the rubber lines and i should be okay, right?

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here is the pic of the carb, i swithed around the inlet, i did have to bend this line a little to get it to work with the dist.,

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yea, i took the cap off while the car was running and it did not make a difference, i am in the process of getting a new gas line from the tank to the fuel pump

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yea, i took the cap off while the car was running and it did not make a difference, i am in the process of getting a new gas line from the tank to the fuel pump

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I didn't see or read.

Did you blow thru the pickup to see if it's restricted?

And did you remove the fuel pump push rod to inspect it?

There's nothing wrong with your supply line unless there's a hole in it somewhere from rust. imo

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yea, i took the cap off while the car was running and it did not make a difference, i am in the process of getting a new gas line from the tank to the fuel pump

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I didn't see or read.

Did you blow thru the pickup to see if it's restricted?

And did you remove the fuel pump push rod to inspect it?

There's nothing wrong with your supply line unless there's a hole in it somewhere from rust. imo

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Chally, he is getting orange fuel & not getting much fuel, he has already checked the tank/pick-up for rust & blockage, he said that was all clear, I had supply lines be bad in these cars & i changed "everything" & still chaseing my tail & scratching my head trying to figure it out, sure enough thats what it was, it even turned my gas rusty color too.

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yea, i took the cap off while the car was running and it did not make a difference, i am in the process of getting a new gas line from the tank to the fuel pump

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I didn't see or read.

Did you blow thru the pickup to see if it's restricted?

And did you remove the fuel pump push rod to inspect it?

There's nothing wrong with your supply line unless there's a hole in it somewhere from rust. imo

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Chally, he is getting orange fuel & not getting much fuel, he has already checked the tank/pick-up for rust & blockage, he said that was all clear, I had supply lines be bad in these cars & i changed "everything" & still chaseing my tail & scratching my head trying to figure it out, sure enough thats what it was, it even turned my gas rusty color too.

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OK I was betting that screen on his pickup was restricted or the fuel pump push rod was bad.

Sure the line front to back can be rusty, but enough to restrict flow?

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i shined a light in the fuel pump hole and the rod seem to be fine and put my finger on it and it seem to fine

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That's fine but you can't see the other end that contacts the cam since it is up in the block, that is the end that wears .

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When I switched to a solid cam in my Hemi, I didn't realize I had a repop pushrod & the cam ate it up. I had the same symptoms as you, but living Reno, the August temps were up to 100 degrees & the methanol in the pump gas, made the fuel boil at a much lower temp & bingo, vapor lock. I put the factory vapor separator w/ return line & it solved the problem, but the pushrod was already going south. Put an Eddy mechanical pump w/ 130 lbs of spring pressure & the rod didn't last long. Had to switch to a Holley electric pump & larger return line. No problems since, but I think you should pull the rod out & check the cam end. Find an original OEM pushrod & have its hardness checked. My understanding is that the factory rods were of a harder steel & won't buckle under the pressure & low zinc oils. Best wishes in getting it running.

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I have family nearby and have cruised Reno the last 2 summers. Yup 6000+ feet alitidue and 95 degree temps, your fuel system better be up for it.

I also run the factory VS with a return line to the tank. On both my 340 and my 440/6.

Drove all over Reno, Grand Canyon, Vegas, Salt flats and more. All those places I mentioned were hot with the AC running the whole time and the stock fuel pump did fine with the VS and return line.

I even drove it for 120 MPH for over 5 miles at a time on the salt flats with no fuel starvation!!

Also drove the 74 340 challenger to the top of Pikes Peak , no problem.

Love Reno, will be back there next year at least once.


Salt Flats...gee I hope I don't run into anything. lol

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i don't understand why when i hook up the hard line from the tank and put a hose from a gas can attached to the hard line bypassing my tank and sending unit, the fuel filter goes empty,

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Oh OK I reread your post & yes you did that. I know you blew thru it but it's gotta have major blockage or sucking air big time (more likely the hoses if sucking air unless the hard line is real old in a humid climate (or salty gulf air). Might check it again (we ARE getting close (er) ) Whenever I get a straw w a minute crack in it w my McDonalds vanilla milkshake I get just enough to whet my taste buds then very little after that

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Whenever I get a straw w a minute crack in it w my McDonalds vanilla milkshake I get just enough to whet my taste buds then very little after that

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Good analogy..

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What have i been saying, the hard line obvisously is the problem, or that short rubber hose that goes between the cross-frame by the trans crossmember, your running in circles, if your getting fuel from the pump too the carb, but once you try & run through the hardline is gets restrictive .

You have ruled out the Tank/pick-up/rod/pump, this sounds like a re-pete to me, i told you to yank out all that hardline & replace it, either with a role of 3/8 aluminum line from summit/jegs, The aluminum is very easy to bend & its cheap too, just use your old line as a template, OR a factory line, but there not cheap.

The mech. fuel pump will not have a problem sucking fuel from a long distance through curves/bends IF theres NO restrictions or air. . Its not "ROCKET SIENCE"

If theres "air" it would be dripping fuel on the ground.