I'm attempting to swap this setup into my max iv, looking to see what anyone else has done for high power swaps. So far I can tell you the foot print is a little wider than gx390, a little over half the weight, and about 8 times as much power. Looking for tips on electric start conversion, ive been told it can be done with factory parts, it's a 1996. I'm having trouble finding parts to do electric start conversion so any help is appreciated. Also tips on clutch tuning or upgrades.