Heres a list of my mods, somewhat close to yours, and im making 280rwhp and 310tq, just to give you an idea:
-Alum Gt40 heads, ported and polished
-Trick flow street intake upper and lower (black)
-1" spacer
-Trickflow valve covers (black)
-E303 cam
-1.72 roller rockers (blue anodized)
-copper...