Dogs are in awe, they haven't seen this run in a while, headed to the ramp with it.

the 8.3 is a monsta

Ran great, bad conditions, windy 15-20, choppy 2-3 feet, visibility about a mile... Oh wait we were in the Cig, no problem..

Chief really built some power into it . The whipple 8.3s are bad ass, it easily pulls the 17.5 x 34 5 blade merc cleavers now to 55-5600. Ran upper 90s easily, to rough to hang it out.check out the t shirt

That's sweet, and now I really have regrets not buying whipples. About how much power do you think you are making with the upgrades? Oh, and do you intend to run 5 blades over 4 blades, and if so, where are the advantages?

Nice job you guys are doing !

Curious, what RPM did you turn the 34's to with the old setup, and how much boost?

How much boost with the new setup?

It would only turn about 4800 with the new props, that was the reason for the upgrades. That was at 6 pounds of boost. The whipples make boost much sooner. And about 3 psi more so far. I will let the owner tell what the results are. They are dramatically greater. The boat is now fun to run. See you in LOTO for the reunion.

Would be interesting to see a comparison 6psi roots vs. 6psi Whipple.

3 psi is about 100hp so the rpm change makes sense. Didn`t try to run 9psi with the Roots?

What's the fastest straight bottom gun out there?

Congrats those brand new Chief engines are badass!! You guys dont mess around, went to Key West with the old engines and now have New Chief 1200's built, installed and running by March!!!