Finally had a little cool weather making me think its time to stop the hunting/ fishing(which was fantastic) and get back into the shop on some projects. Need to finish the 98cc Villiers build and the B&S build which are about 85% done. As usual I got side tracked this time with the BT80(70ccs of course). I had followed KCs build and the guy down the road in Jacksonville. That got one on the way from BB. Got it today and wow! Its like a parts department in two boxes. There is even a very nicely made HD puller I'm assuming fits the mags rotor. Everything is quality and well packed. Even the chain guard that I normally fold in half and throw in the scrap bin is HD. Wont be folding it! A quick look down the ports shows I believe a chrome bore, its very shiny. There is only maybe .080" of piston left in the port when the crank is at BDC and nearly nothing in the intake when the crank is at TDC. Absoutely NO trash any where! Have been trying to use an early Grubee style aluminum frame in a build. It fits (as shown in one thread) using the lower 2 of the 4 mounting studs. Doesn't appear to offer major challenges(cant believe I said that!) Plan to ditch the SLA in favor of a trusty 5ah 4s Lipo for starting. Havent figured if I want to charge the lipo from the charging system or not. The system would never fully charge the 4s which is 16.8v fully charged still it should keep it in the 14+v range which is enough to start. May just run it total loss and charge once in a while. Plan to ditch the box and mount the pieces individually around the frame.