I have a 1980 z28.weight is 2900lbs.I get 8 miles/gallon.355/auto/3:42.HOW IS YOUR FUEL BURN

 

welcome to the forum, i have moved your post to 2nd gen section. please read the rules. enjoy

 

Your Mileage seems really poor unless you are beating the hell out of it all the time. I dont own a 2nd gen yet but I have had plenty of cars and trucks with a 350 in them and gotten better mileage by far. 1969 Chevy 3/4 ton with a dead hole in a 350 gave me 10 on the freeway and about 7 in town. That is alot heavier than your car and the dead hole does not help mileage.

Massey

 

when my 81 had a stock 350 with edelbrock intake and carb, 1 5/8" headers with 2.25" dual exhaust, and 2.56 gears I got like 18mpg freeway and like 15 city. So if your 355 is built i could see getting 8mpg with an auto(assuming 3 speed) and 3.42 gears
and unless you have really stripped the car down its not gonna weight 2900 lbs. That's about what a 1st gen weighs.

 

Please don't take this wrong, but I'm always amused when people build a classic muscle car and begin to worry about mileage. If mileage is an issue you should keep them stock, or buy a economy car for a daily driver and enjoy your 2nd gen for what it is.

 

+1..I agree Vall, I always here people talking about don't get this or that because it's gonna suck more gas but it's not a honda so who cares

 

350 hp at 25 mpg is common with ls1 6 sp. im getting 20 mpg at 380 hp and im running rich. but i dont have a carb either, forgot about that. get about 2-4 mpg with the gillnetter. only thing i have with a carb. lol. if you dont already have one a 700r4 would bring the mpg up

 

I rate mine more at gallons per mile! Gas mileage never phased me, that's not what I have the car for.

 

I've got no idea what my Camaro or my Austin gasser get for mileage. Didn't build either for mileage. I can tell you exactly what my Toyota 4x4 gets, and it's not as good as I'd like, so it's going down the road soon! I need one of those economy trucks! Is there such a thing???

 

Holy crap my 6000# 3/4 ton get 11mpg on the highway. Might wanna invest in a a/f gauge and get your tune on.