I was just wondering if ne one had a clue as to were my horsepwer rating should be. the car is in the shop gettin everything put on, just wondering what i should expect.I have a 95 z-28 and the stock bottom end has 117000 miles on it and the top end is an lt4 hotcam kit without the lt4 heads, I'm have the heads custom worked to match the cam. I have a 58mm port and polished throttle body, and 58mm port and polished intake manifold, and an 82mm high performance mass airflow sensor. I also have hooker longtube headers and 4:10 gear goin in the rearend. The car has a t-56 manual as well. I would appreciate it if ne one could shed some light on what I may expect, thanx

 

320

 

you should be over the 420's (fly) since the lt4 package claim to produce 425 with good tuning.

 

Oh...didn't notice the heads part. So yes, 400+ at the crank is reasonable.JMHO

 

well i put down 308 without the Cam and heads... so i'd guess at least 360 to the rear wheels..