My Combo, Right or Wrong!

Well, soem Felpros have a much bigger bore, but the std "performance" one is 4.18". IIRC the blue Permatorque is at least a 4.10 bore. (340+.060 over). Using it on a 360 with a 4.04 bore, you'll have a little "extra space". The compression comes to 11ish:1. The heads flow really well after .300, and that cam will use it. I'm thinking it should peak right around 400hp at 5500, and should be able to run on pump premium gas (9.23:1 dynamic compression). Torque should be strong, with a flat curve maxing around 4200. (no calculator or desktop dyno..just my opinion)