I just threw a 6139 T-quad on there and wow it has very sharp response now.! And I already though it was good

I will report any changes in MPG.

I think the other carb was a 74 440 truck.

No improvement with an AVS or the smaller t-quad for mpg but the smaller t-quad did help throttle response a little. I am trying to get the car running right now I am haveing problems with it running like crap when its warmed up. I currently have a 770 street avenger on there that seems to run real good till it gets warmed up.

The 770 is not getting near the miledge the t-quad was getting even now I have it running right. It does not atomize the fuel nearly as good. If you watch the venturies when you rev it in the driveway the drops are much larger than they were from the t-quad venturies. I have been getting about 15 in town and 22 on the highway since I got it running right again.

I have a 625 street demon carb I will probably try soon. It is the first Demon carb I have messed with, kinda weird to me how it has smaller secondaries than primaries

So 15/22 with the 770 vs what for the TQ?

Can't remember the previous city numbers, but the HWY was 29, IIRC. I'm thinking it was 22 city...hopefully Dave'll pop back soon.

Yeah those numbers are about right. I just traded for another 72 340 t-quad I will build it for this thing and sell the holley, if it don't sell I will try it on the big motor.

As for my big motor I have a Crank and .020 over 340 block, aluminum magnum heads a couple intakes to pick from (M1 single plane, torquer II, and eddy air gap)a comp XE268 cam and 1.7 mopar performance rockers so I am slowly getting what I need. I also have an a-500 to stuff in it now too so according to my calculations a 414 X .69 = 286 so when I get it all in there it should act like a smaller motor than what I have now at cruise but the first 3 gears will be way more fun of course port velocity will be lower and cam over lap will be higher so it may not do quite as good as it does now but I am still thinking mid 20s on the highway. I am also itching to trade the wheels for some 15x7 ralleys to soften the ride and make it a tad more old school look. Of course at the rate I buy/trade parts (still need pistons rods rings bearings)it will be a while before I get the other motor together

Sold the motor today.

I sold it with a 71 440 AVS down to the oil pan. If I can hold on to my money (keep the wife out of it )through the weekend I will be buying pistons, rods, rings, bearings, gaskets... for my stroker on monday

Independance day fun, I told my cousins there smoke bombs werent nothing, watch this

Just got a wild though through my head a minute ago, just for kicks and giggles.

I am building a 414 magnum headed monster for the car, but I have another 273 2bbl cam/lifters and closed chamber 318 heads and thought it would be interesting to see how different the MPG would be with the same basic top end as before but another 91 cubes

I could throw the MPG top end on for a little while before I put the big cam and magnum heads on just for an experiment

IT'S still ALIVE ... .. the topic that is.

I have not read through all-of-this ......

Has ANYone tried really leaning the carb out and then using water-injection ?

Well I sold it, mabey this info should be moved back to the archives.

Comeing soon, super duper MPG II

Shooting for 30 MPG

I got to read through this thread

The only thing I know was a friend running OTR with an '06 Ram with a Cummins. He got 2.5mpg better grossing 22,500lbs. 12 to 14.5.

It was a primitive set up. Just burning off unburnt fuel.