only as to size, my 35 lightning has twin whipple charged hp 500 and runs over 100mph, the formula would chine walk above 70

Did you have K planes on the Formula ?

What was your top speed ?

I had a whippled 271 Fastech that would run 80. Added Hydro steering to correct .

https://goo.gl/photos/xFqziMZuY2tMRdsA7

Thanks guys... link to pic.
I do have k-planes... still working on the speed. So far I've seen 64 gps. worked 502 with 26p four blade prop.

Very nice boat :-)

How many Hp inn that 502 ??

Welcome aboard. Nice Fastech!

Looks nice! Great that it has K-Planes too. I made the upgrade on my 292 and it was definitely worth it.

530

What gear ratio & prop size? With 530 HP you should run at least 70-72

99 271 fastech stock 502 66mph with light load. 415 hp 26 p prop