1.5 drive?

Yep, 1.5 drive. Tyler Crockett motor with Dart heads, Wipple intercooler, ECU... Was cold out going into a slight left hand turn when I hit 87.

Thanks for all of the information, We have all the same hulls right? Maybe I should start with more HP, I do have a M3 procharger but since I have rasied my compression I can only run 3 more pounds. Just to let everyone know when I bought the boat a couple a ago it had a 2 inch spacer but the best speed was 67 mph. I just don't understand why my boat is only run 76 with 600+ Hp unless the dyno was not correct.

I also have a 1998 Baja Boss 27 with 509 m3 Procharged 750 hp. Alot lighter than my Fountain and faster to. Go under "drives and lower units" here on the forums and look for "torn between Fountain and Baja"

What torque numbers did you have on the dyno? The m3 would give you more torque and push that heavy of a boat better.
On the dyno mine was 738 lb/ft of torque. Over 700 all the way thru the rpm range. A N/A motor will not have that flat of a torque curve.

I never saw the dyno sheet but talked to Riggs marine who built the motor, Boat came with HP500 but the guy before me wanted to go faster so they took a 500 bulldog and made some upgrades to the motor. I bought it with 30Hrs on the new motor. Spec sheet from fountain back in 98 said it went 71mph with a 24Hydro. Talked to Nickerson Performance and I am going with a new Carb for the M3. The real question now is, If I run a thru hull water pickup with it increase my HP.. My other boat has a built 461 with a M1 procharger but never saw a speed incease later in the build when I went threw with a fresh water pickup. Is it worth drill a hole in the boat?