Looks like its going to be a 555 the block had been punched already

Should be a good cam to prop to around 5200-5500.

Thats close to the grind I was running in the 540's with a afr 305 head, they made good power

F2 speedy where were u proping with that cam for rpm, i have 305 cnc heads on the way im debating sending the marine kinetics cam i have back to cam motion they said it can be streched to 239ish/242ish 640 650 lifr on 114 regrind is 200 vs more to do a whole new cam what do you think

33 Outlaw 7800 lbs boat 28p 4 blade bravo....5200 625hp

What kind of speeds are you getting with that power in a 33 Outlaw?

best was 82 gps, that hull liked a lot of trim

Nice, im hoping to see 80mph with this 25 outlaw with the new motor

Just recently finished dyno on my 2 540 motors. very happy with the results. contact Bob M. at Marine Kinetics, he can point you in the right direction. Thanks Bob for your cams and advice to put together my builds. AFR 325 heads, 9.75 compression, Nickerson 4150 carbs, 681HP at 5720rpm.

What was the cam selection?