You pulled the heads in the boat? Will the cam clear the bulkhead when pulled? My 575 one more hard run from blowing out the gaskets. FYI, Felpros would be fine at your HP level.

Need a set of heads mine were trashed any one got any aluminum or any advice where to get some don't wanna spend a millions either

Be careful on your head selection as a lot aftermarket heads have raised exhaust ports. It can cause tail pipe alignment issues, not a deal breaker but just giving you a heads up.

Where do you boat?

I'm in new Mexico 4000 ft it sucks no hp for me really hard to tune things here

Heads are crap need new heads valves were tuliped

I'm getting ready to install my stuff.I plan on running 7lbs of boost with a chiller i have a 500hp and a 420 mega blower. cam is a 525efi aluminum heads and I was wondering would I be safe running 91 octane and some octane boost which brand should I use if I need to.I run at 4000 ft most of the time . also will 2 750 holleys be enough fuel.

What did you decide to do as far as heads?

Aluminum 330

Question on chiller install how does this sound for plumbing

Im gonna run a through transom pick up . To a seastrainer to chiller. Then a double dump. Front of chiller inlet and block 1 side and 2 backs are my dumps . How does this that sound. I was told that the way to go. No water to chiller at idle.