HEY

I HAVE A 1985 IROC Z CAMARO WITH A 305 TPI LB9 ENGINE. ALL THE IS DONE TO THE CAR IS A CHIP. THE CAR HAS AROUND 220HP. IF I ADDED

SLP EXHAUST
SLP HEADERS
K&N FILTERS
AIR FOIL
B&M SHIFT KIT
UNDERDRIVE PULLYS

HOW MUCH HP/TORQUE WOULD I BE MAKING

STOCK HP IS 215 AND STOCK TORQUE IS 275
THE CAR DOES 1/4 MILE IN 15.2. HOW MUCH WOULD THE MODS DROP MY 1/4 MILE TIME

CHECK MY CAR OUT AT
http://camaroz28.cardomain.com/id/56424

 

I'd say mid 14s.
One thing though, don't waste your money on the B&M shift kit. The only TRUE shift kit is the Transgo Reprogramming kit. It actually fixes the problems with the 700R4.

 

I'd say high 14s. Only because all your mods added up will only give you an extra 30-40 hp MAX. And thats on top of a engine that has many miles. Engines will naturally lose Hp as they get older. You are helping the engine breath better but it can only breath so much without getting into head work and a new cam. I'd say properly tuned it should run 14.8s. But then again it all depends on the circumstances (weather, traction, etc.)
BTW--those underdrive pulleys won't do much for ya (meaning the HP gain is VERY minimal..you won't feel it)