very little
ADVERTISED HORSEPOWER IS--155HP @ 4400 RPMs.
That would be an LE9 engine. Those were rated at 210 horsepower and 250 lbs/ft. of torque at 2000 RPMs.
I believe the horsepower of the rs is between 205 and 240 horse!!
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.
305 horsepower
Advertised Horsepower is--160 HP @ 4400 RPM With 4 bbl Carb.
305
Some where around 260 give or take 5 or so due to wear.
Several engines were available. The 305 cid (gas) had 170 HP and the 350 cid (gas) had 210 HP.
130
The 3.7 liter V6 engine is rated at ( 305 horsepower )
305 horsepower.