Eight years later and a thousand hours Skip and I put in the new 6.0 levitator rated at 460hp and full emissions legal. This motor is a real smooth runner and very quiet due in part to the twin cats. Fuel economy is fantastic at roughly 6-7 gph. Right now I’m still In the break in process. The throttle response is just amazing regardless of the load. (13 people).
The only other changes were to upgrade to the 2:67 gear and long hub with 3 blade R’s
WO throttle is 5200 just past the three mark at 57 mph and pulling. I chickened out. This is a great upgrade and has the reputation of good longevity. I’ll keep you posted as I put more hours on it.