I am hoping to get my car going this week if all goes well.

My car is a 74 Dart Sport with a 440. Holley 750 3310, Road Runner .450-.455 cam with a Street Dominator intake. 4.10 gears with as much tire as I can cram in there.

It isn't so much what will mine get right now. I know I need to swap in some taller gears and a different carb before the word mileage crosses my lips.

I am curious as to what type of builds you have, and what you do get on the hwy for mileage.... This would be for a car build, not trucks etc.

Please spare me the "I don't care, I fill it when needed..."
stuff......I know that much...

I know they weren't made for mileage, but I would like to drive my car a fair amount when done.

Thank you as always. ROB

First .....GET RID of that Berri-crab ! .....

THEN that gear.

berri-crab?

What is that?

Stock, tired, '77 440 in my wagon with Thermoquad, and 2 something gears out back, I was averaging 12-14 in the daily grind.

'Berri-carb' is a Holley carb, as in holly bush.

Not everyone speaks 'Doc'...

Berri crab ? .. = .... Holley(is also Holly which is the leafy-decoration can contain a red berry). Crab ... is the MISspelling of the word carb !

Just a inside JOKE ... not of my making. I just WISH I could take credit for that !!

Get a ThermoQuad and tweak-it good.

I am on here enough and I know you are a funny person.



I am leaning towards the Eddy 800 for my carb, but the holley will have to do for now.

Come to think of it, getting the engine installed will have to do for now

You won't se much if any difference in an Eddy and a vac Holley. Maybe if it were a DP, but not a 3310.

If you are looking for the best MPG ... the TQ is the best route ...short of DPFI.

Seriously.

Like every Mopar guy, I have a shelf full of Thermoquads. Once the thing is running and running good I will do some experimenting. Until then, I will leave the Holley on there.

Thank you......Seriously.

ROB

But MOST Mopar guys use the TQ's in a TQ toss !

COOL ....and when you want to experiment just pick a good carb ...and then get a set of BRASS floats.

That is a must have.

Headers and dual exhaust along with a hot ignition should help with mileage. Get a 12 inch stock converter. Thinner tires. Weight reduction. Good advance curve. ect

......OH ....definately VACUUM advance ! ...and you should also be able to pull a 2.76 gear with a T A L L tire ...no problem.

Here's a guy that got 25mpg with a SB 408 stroker.

https://board.moparts.org/ubbthreads/showflat.php?Cat=0&Number=5553405&an=0

Well then ....I will "wear-it" like a Medal-of-Honor ...

Mileage?
Well... my 6bbl gets abot 60 miles out of my 17 gallon cell

Well THAT'S what a couple-a Berri-Crabs will getcha' !