I have a 27 ft Fever that had a 502 mag mpi engine in it locked up. I have bored the block .30 and bought the dome tops to go back in it and the rods have been changed to floating pins. I'm going back with a set os Aluminum heads and carb. My question is what would be a good roller cam to use in this engine? I want a good lopy sound and power up to 5000-5500. I'm kinda hoping to be somewhere close to 500hp or better.. Any ideas????

Crane 731 is a great shelf grind

What lobe sep is the best to go with to keep from sucking water back up through the exhaust?

i have a crane 731 cam in my 454 with the gil hp500 tall risers, no reversion issues at all and it sounds great.

you'll need more than just a cam to hit 500hp. Some better flowing exhaust, the cam and a little intake work should do it. Don't forget you'll have to reprogram the ECU also.

W/ aluminum heads cam & decent exhaust you'll be @ 500hp easy if you go carb