I have a 96' 454 Mag EFI/mp motor. Just had the heads redone and port and polished. Dropped a #1 intake valve. Possible going to change the stock exhaust. I need to know what cam to go with, size, with out having to re-map the ECM. Trying to get some added power without having to change major componets.

Does anybody have any advice?

Call "RMbuilder" aka Bob Madara of Marine Kinetics in New York. He is very good with marine cam apps and has done mulitple cam apps for guys here on OSO, etc, including mine. 585-654-8583

The best mid-range cam used in the 502 540 and I use it in my 572's - LOVE THIS CAM!!!!

Good mid range torque and HP, fair idle, performance usage, mild bracket racing, good w/manifold nitrous system, auto trans w/3000+ converter, marine applications: for 454-502+ cu.in. modified engines in performance applications with aftermarket dry pipe exhaust systems. 3400-3800 cruise RPM, 10.0 to 11.5 compression ratio advised. Good w/Roots supercharger, 15 lbs. maximum boost w/8.0 maximum compression ratio advised.

http://www.cranecams.com/index.php?s...21&lvl=2&prt=5