Firebird1984

Ok, I'm sure this has been asked a million times but I'd like to ask anyway. I have a new 350 crate engine installed in my 1984 Bird with the TH700-R4. So far everything is new (carb, tune-up parts, etc.) and it has about 700-750 miles on it so far. It runs great, no complaints at all. I know it's not totally broken in with this little amount of mileage, but I was wondering what mileage/MPG you guys are seeing with similar combinations. So far I am getting about 17-17.5 MPG with very conservative driving habits. It may increase with some more break-in miles, but I was wondering if that was about what you were experiencing with yours. MANY thanks for any insights.

Brad

PS - I did richen up the mixture by changing out the rods on my Edelbrock carb as the plugs looked VERY VERY clean and I was afraid of running too lean. The plug color is a light tan color with no real deposit build-up. Seems to be about right for the mixture. The rods I installed moved it 2 steps richer on my 1406 Edelbrock carb from the factory setting. I also swapped in one size larger jets into the secondaries at the same time. Since I am VERY conservative on acceleration, etc. I'm not sure that the secondaries are much of a contributor to the mileage equation. Thought I'd mention it just in case it might shed some light on the situation.

GuitarJunki17

iTrader: (1)

I'd say that number is pretty much on for your setup with the carb. I am running EFI and getting 16 with conservative driving, but I need a tune up.

Firebird1984

Thanks for the reply. Perhaps I'm not doing too bad afterall. Anyone else with this kind of setup getting similar results or better?
Brad