Not sure which engine you have in the camero but for the 350 I got 4 mpg at wide open throttle and a high of 35 mpg driving at a steady 35 mph. The long term average fell around 16-17 mpg. Have fun, RIck
It's a borred over 350 to a 383. But it's setup for performance. Actually it had a Muncie 4 speed in it, with the 4.10 rear end 75mph was 4000 rpm in 4th so driving it was generally limited to city streets. We have a Kiesler 5 speed overdrive transmission being installed right now, so it will have something like a .62 overdrive gear now so that should save a bunch of fuel for just cruising around with it. I'll have to see what it is one day if I can drive it normally for a whole tank and not drag race it.