factory it had 195hp, but probably less as mileage and wear has a way to decrease that number.
305 horsepower
not enough
This depends on year and what 305 and even in some cases what trans you have. 150 HP LG4 Carb 305. 190 HP L69 Carb 305. 215 HP LB9 TPI 305(1985) 190 HP LB9 TPI 305(1986-1987) 215-220 HP LB9 305(1988-1989) 215-230 HP LB9 305(1990-1992)-(91-92 were Z-28's not IROC's since GM Lost there contract with the Internation Race Of Campions which used the camaro's body design for their series from 84-89)
Several engines were available. The 305 cid (gas) had 170 HP and the 350 cid (gas) had 210 HP.
The power rating when it was new was approximately 235-240 hp
depends how many k engine wear and efi or carb simple way to test is take it to a dyno. i have a 1988 firebird with a 305 efi and it has 230hp
305 hp
180hp
Base 305 4bbl (170 hp), optional 305 TPI (215 hp) or 350 TPI (225 hp)
The 305 "HO" was actually dropped after 1986. In '87, the base 305 TBI was rated at 170 hp, the 305 TPI was rated at 215 hp.
1989 was 160 hp 1998.5 was 215 hp 2003 was 305 hp
305 rwhp