Thanks for the info guys, they seem to be sequential shift too, do they use a bike gearbox? Are the cheaper kits as good as the westfields, seem to be loads that all look the same lol, mak1's/mk indy's etc. Are bike engine's expensive for bits or are whole engines cheap?? The westfield i was looking at had a blackbird 1100 engine, don't know if they're good or bad though?!