Hey guys....ok...been restoring an 300 first gen attex...changed everything, including building beefier axles, better bearings, second Gen Baker Hill 7000 tranny and shoehorned a Vanguard 14hp motor in for power. It's ALMOST ready to drive....but...I have test ran it, jacked up on the trolley in the shop and there's an issue. With the governor eliminated on the motor(which is ok if you don't over-rev for sustained periods) and the full band of horsepower available from the engine, I have slow wheel speed. With wide open throttle, the belt is fully expanded in both clutches with NO slippage but the tires are spinning slower than I think they should be. I found the right belt, it engages and stretches good, the clutches appear to open/close properly, but I have no wheel speed under WOT...appears to be just crawling. What the hell is wrong? I seem to recall reading somewhere on here, that when you swap the original one lunger Kohler engine with a Vanguard 4 stroke that uses a Comet style primary clutch, you need to change the spring on the Baker Hill tranny clutch to a different stiffness? Color? So it doesn't open so fast? Is that the issue?