my camaro has a 305 TBI which id say is bout same power wise as a early carbed 305

which mine is rated at 170HP 255tq stock with 700r4,id say it would run high 15

worst parts about 305s are the heads and exhaust..........ive seen a 305 make 30 more HP from just from full exhaust...

and my epa gas milage is like 18 city 25hwy