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Re: Bang for Buck 440 Motor Mods Stockish 67 [Re: mopar346] #1756974
02/26/15 11:22 PM
02/26/15 11:22 PM
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nielsville, minn.
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quickd100 Offline
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The carter 4327 is a 750cfm unit, properly set up it will work great, I ran a 1.59 60ft in my old truck with one with a mild low compression 440.Dave

Re: Bang for Buck 440 Motor Mods Stockish 67 [Re: mopar346] #1756975
02/27/15 12:26 AM
02/27/15 12:26 AM
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Prospect, PA
BSB67 Offline
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Quote:


Dail it back as in small jets, a lot of air gap between the bolt and accelerator pump level on the secondaries, changing the cam to limit the amount of squirt when you stump it from a stop, limiting the amount of pull/opening of the secondaries.




Wow. I'm at a loss for words. Maybe that is why you have problems with DPs

Anyways, If you have a specific example and personal experience regarding a DP in a similar situation as the OP, just share it. He can decide for himself.

Last edited by BSB67; 02/27/15 07:37 AM.
Re: Bang for Buck 440 Motor Mods Stockish 67 [Re: quickd100] #1756976
02/27/15 07:42 AM
02/27/15 07:42 AM
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Prospect, PA
BSB67 Offline
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Quote:

The carter 4327 is a 750cfm unit, properly set up it will work great, I ran a 1.59 60ft in my old truck with one with a mild low compression 440.Dave




I do like them. Pretty impressive 60 ft.

Re: Bang for Buck 440 Motor Mods Stockish 67 [Re: BSB67] #1756977
02/27/15 09:29 AM
02/27/15 09:29 AM
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Someplace you aren't
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SomeCarGuy Offline
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A double pumper will be fine. Not what i would run for this combo but it would work.

Since he has a 750 avs, that is a fine choice. OP, get a rebuild kit and we will walk you through it if needed. Once you prove it out, the resto job can be done later for looks.


I want my fair share
Re: Bang for Buck 440 Motor Mods Stockish 67 [Re: BSB67] #1756978
02/27/15 11:05 AM
02/27/15 11:05 AM
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Florida
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mopar346 Offline
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Quote:

If you have a specific example and personal experience regarding a DP in a similar situation as the OP, just share it. He can decide for himself.




Well you got me there cause I learned in my teens not to do it, probably 5 years before I got my first 440, but I have seen it on too many other engines. But there again, mostly racing so might that might effect my view.

But back to the topic, I still feel he needs to daignose the problem first not just throw parts at it based on some internet suggestions.


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Re: Bang for Buck 440 Motor Mods Stockish 67 [Re: mopar346] #1756979
02/27/15 11:21 AM
02/27/15 11:21 AM
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p d'ro Offline OP
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So does everyone agree that the 4327 will perform significantly better yhan the 750 performer? If so hat is the best rebuild kit source?

Re: Bang for Buck 440 Motor Mods Stockish 67 [Re: mopar346] #1756980
02/27/15 11:55 AM
02/27/15 11:55 AM
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GTX MATT Offline
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Quote:

Well you got me there cause I learned in my teens not to do it, probably 5 years before I got my first 440, but I have seen it on too many other engines. But there again, mostly racing so might that might effect my view.




Exactly, I read many times not to do it as well. But I've come to find that pretty much everyone who says not to run a DP on the street has never done it...


Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street
Re: Bang for Buck 440 Motor Mods Stockish 67 [Re: GTX MATT] #1756981
02/27/15 12:51 PM
02/27/15 12:51 PM
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Florida
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mopar346 Offline
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Quote:

Quote:

Well you got me there cause I learned in my teens not to do it, probably 5 years before I got my first 440, but I have seen it on too many other engines. But there again, mostly racing so might that might effect my view.




Exactly, I read many times not to do it as well. But I've come to find that pretty much everyone who says not to run a DP on the street has never done it...




I don't know that never is the right word exactly but I cant say I have run one on a stockish 440 on the street. Some would probably argue that single planes are good on the street in an auto with nos tall as well, but I would disagree with that as well. It just doesn't make sense in my mind to run a set up that is designed to work best at 4500 plus when the cam runs out at 4800 and the motor cant take 5500 too many times and stay together. I like low end grunt to get out of the hole and moving especially on a street car and yes 440s, even the truck ones have plenty of that naturally. Maybe I should say it's not the best choice from my experience.

I will still say diag first then spend money, if the carb is a known issue then address it, even by bolting on a known good one. If that's it then buy the best you can get/afford for the set up. It would be interesting to see what the expects would recommend as far as carb for his set up.


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Re: Bang for Buck 440 Motor Mods Stockish 67 [Re: p d'ro] #1756982
02/27/15 10:35 PM
02/27/15 10:35 PM
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Prospect, PA
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Quote:

So does everyone agree that the 4327 will perform significantly better yhan the 750 performer? If so hat is the best rebuild kit source?




I think that I gave you a response to this specific question several days ago.

You do realize that no one can answer your question with certainty, right?

I'm not really seeing a down side to rebuilding the 4327.

Re: Bang for Buck 440 Motor Mods Stockish 67 [Re: BSB67] #1756983
02/27/15 11:18 PM
02/27/15 11:18 PM
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p d'ro Offline OP
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Quote:

Quote:

So does everyone agree that the 4327 will perform significantly better yhan the 750 performer? If so hat is the best rebuild kit source?




I think that I gave you a response to this specific question several days ago.

You do realize that no one can answer your question with certainty, right?

I'm not really seeing a down side to rebuilding the 4327.



I understand it may be a little better. I have rebuilt two carbs. One old carter that was on my 67 vette and one two barrel autocraft 2100 on my 70 bronco. The vette turned out great but the ford not so great. Not sure why but I dont have a compressor so I use a bucket to soak in, a tiny wire to run thru passages and the canned carb fluid. Since this one is almost fifty years old I am afraid I will miss something that is worn and should be replaced or flat out not know because I have not done one. I think I will give it a vo but wont swap until I get the a/f numbers. Unfortunately I only have a bung on one side so that may be less than optimal.. at least it is on the side that had the knock..

Re: Bang for Buck 440 Motor Mods Stockish 67 [Re: p d'ro] #1756984
03/08/15 07:20 PM
03/08/15 07:20 PM
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p d'ro Offline OP
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A little progress. Warmer today in DC metro. Had to drill out allen center of bung and then use metal jigsaw blade to cut it out. Got it out finally with minimal damage to threads and got sensor installed. Max vacuum idle tune of carb has about 13.9 reading, which seems fine. Issue will be when I drive it. Too much melt and salt on roads now. Also cut out a little of carpet as it seemed that I was missing about 1/2 inch of travel on throttle that could not be adjusted on carb side. The pedal was not throwing far enough. Maybe that little bit will make a difference. I will update when I can drive it. I will rig my video camera to look at tach and A/F..

8453646-RTAF.jpg (160 downloads)
Last edited by p d'ro; 03/08/15 07:21 PM.
Re: Bang for Buck 440 Motor Mods Stockish 67 [Re: p d'ro] #1756985
03/15/15 11:47 PM
03/15/15 11:47 PM
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p d'ro Offline OP
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I did a little work on it today. Swapped in a new chrome box I had laying around just for kicks, double checked timing, made sure all converter bolts were good (they were), then took for cruise despite having what seems like a small miss at idle. Car ran normally. S/F readings were approximately:
idle: 14.0
steady 2000rpm: 17.0
steady 2500rpm 13.5
steady 3000rpm 13.5
lite throttle under load from 2k-3k: 14.0
WOT 2500-close to 5k:13.0

I have been reading about changing metering rods and jets in the Edelbrock Performer series and will get the kit. I will probably just try to add a step richer but I don't know what I have in there yet.. That will have to wait until next weekend.

Skipped the compression test for now. I know, that should be first. Damn driver exhaust manifold has slight tick again after just doing the remflex. I did retighten after a few heat cycles, and now a few of the bolts were slightly loose. Have to get under to try to reach one closest to firewall, which is a [Edited by Moparts - Family Friendly Site - Keep it clean]..

Bought a new coil just for giggles since mine is at least 10 years old and everything else in ignition except distributor is new..

Re: Bang for Buck 440 Motor Mods Stockish 67 (Update) [Re: p d'ro] #1809271
04/22/15 10:41 AM
04/22/15 10:41 AM
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So I pulled the top off of my Edelbrock 750 Performer 1407 last night as I just received the calibration kit in the mail. My A/F readings show lean all the way thru, super lean off idle and now about 15.0 at WOT.Not sure why it changed from before..
The previous owner had dyno tuned this carb to my old motor, which had a little bigger cam and better heads.
It has .113 secondaries, .110 primary jets and a 1457 (.073 x .052) rod. This primary combo isn't even on the Eddy Calibration chart. The closest is spot 26, which is 3 steps lean in cruise and 1 lean in Power. That is with the .110 jet and .073 x .047 rod. My rod is even wider, so I may be 2 steps lean in power. So I decided to set it back to original specs and see where I am at, but I did keep the big secondary jet in since it was so lean at WOT. Probably shouldn't have, but I couldn't test drive it because my practically new OEM positive battery cable broke at the terminal. I have probably had it off 4 times... Bummer.

Last edited by p d'ro; 05/08/15 03:29 PM.
Re: Bang for Buck 440 Motor Mods Stockish 67 (Update) [Re: p d'ro] #1821897
05/08/15 03:32 PM
05/08/15 03:32 PM
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p d'ro Offline OP
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Took car to shop and had compression/leakdown test. All cylinders near 160 but #4, which is at 125 and had 24% leakdown(crankcase), where all others were less than 20%. He thinks I should just drive it for the summer and inspect it in fall/winter as I probably can't hurt it more. Is this the case? Is it probably a cracked ring? One way to find out, right?

Last edited by p d'ro; 05/08/15 03:32 PM.
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