im putting this in my 89 vert this week. i am told it was pushing 450hp and near that in torque before it was pulled from the prior iroc it was in. is this a good selection of parts, combination? wont be on the track, just wanted something with some power.

rebuilt 350 tpi with < 1k miles running the following
Patriot performance all aluminum cylinder heads
Comp 270h cam
Holly stealth ram intake with high performance fuel rails
Bosch 36 lb injectors
58mm polished holly throttle body
Msd coil and cap and wires
Titanium coated Edelbrock shorty headers
Computer with professionally tuned/upgraded chip

 

Sounds a little optimistic.
Got a dyno sheet?

See
http://www.compcams.com/v002/Pages/395/XR270HR-10.aspx

What size heads?

 

i dont have a dyno sheet, was just told by the person i bought it from it was dyno by aztpi so maybe ill contact them directly. I looked in the headers and was not able to see a model number or anything to determine the size. I figured with all these parts, it should be pushing something decent. Im also going to take out the rearend on this one and put in mine since i have the lower gears. one thing at a time though. I put a list of all the engine mods into my signature.

 

sorry, i mean i opened the heads and looked in there (not headers)