I have the 750 kit assembled on my bench. I put in the cam from 650 Central and went in a cleaned the ports up. I wouldn't say ported because all I did was smooth the castings. I too, don't know how and don't have a flow bench. I still have to purchase carbs and an ignition.
It will be interesting to feel the difference between it and the stocker. (stock w/carbs Mac pipe and ignition)
At least, I hope there is a difference! MMM says I will be needing clutch work because of the additional juice. Fine with me!
- Travis is spot-on here...id be more inclined to trust jerry heiden tho than mikes...i installed a 750 kit on my 270Â° rephase-pods and freer flow exhaust-neighbours hate me-std cam rephased, original rejetted carbs, the difference at the wheel was noticeable but definitely not 20 percent...by feel also not 10 percent, but more responsive and a totally different characteristic
The one thing you never get from dynos and hop up kits and all the screeming revs is how long is it going to last..........must be of some importance to someone........it is to me.........
Heavier pistons can surely make them vibrate more but high compression can really make them vibrate I have found................xsjohn