Bump the compression to 10:1 and you might be OK, unless you are going be running over 5,500 RM, stay hydraulic roller..
JMHO
George at Clay Smith Cams is the jet boat guru.
That's sound advice.
GT
Roller is out of the budget for now, as is a CR bump. I'll go back through the bottom end at a later date. It's a stock Berk with an A cut, it'll never see over 5k.
Both of those cams are way too big for what you are looking to do.
I would recommend the Schneider Racing JB-3H . They are out of san diego and have been making cams since the 70s or 80s cant remember right now.
224* / 230* .540"/ .540" on 112. Just put this in a 468 BBC and pulled 500 HP at 5500 with headers. The cams you listed will peak power too high for what you need in a jet boat.
Just my $0.02
I figured they were a little big, but hell, you gotta start somewhere.
You need to get in touch with, George Striegel of Clay Smith Cam. His shop is in Buena Park. 714-523-0530.
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Thanks for the info, I'll look into it.
Nothing I've found in a catalog seems to hit the sweet spot, they're either tiny, or they rev too high.