I'm with Eddie. RPM isn't a drive killer, torque is. Even an alpha is fine at 6500. Too much prop will kill it quick though.

Where is tom located. I'm going to need to dyno my combo here in 2-3 weeks if I'm lucky!

He is on gun lake if you need his number let me know.

Here are some pics of the 598 going in my HTM SR 24

Looks Sweet. I like the color.

Good looking build. Now have some fun.

Looks good, I am not the expert, if Eddie thinks to prop it higher you might listen to him. I would think Bob would also know were to prop it. I would play around with props and see witch one was the fastest.

With the spacer and the breather will it fit under the hatch or is it time for the scoop?

I may have to take off the scoop

Very nice, enjoy !