The HO engine had higher compression, bigger intake valves, and a different cam. Also, it was painted black.
if you have an 84 z28 camaro it has a 305 or a 305 h.o. 5.0L
z28 305 150hp 240ft/lb torque
305
305
I believe the 305 TBI was in the RS models. the Z28 had 305 ad 350 TPI (tuned port injection)
305
305
305 hp
Either a 305 TBI, 305 TPI or a 5.7 TPI
700R4 auto or 5speed
305 Stock to flywheel.
Chevy-GM 5.0 liter is 305 CID.