Hi all, new to the forum just though I would introduce myself, my name is Dave and I run a garden tractor pulling team based in Bury Manchester....we run a modified wheel horse garden tractor with a kohler 12hp engine which is de restricted polished and ported...will inc a few pics, also added are widen rear wheel rims safety cut outs and roll cage. Whilst I am rambling on I am also after some hints and tips as to how I can squeeze another horse or two out of my kohler and also a little more grip on the back end....