actually cutting the seat down involves swiping your wife's electric knife, the one she only uses at thanksgiving, and doing some creative carving on the foam. Clean the blades up and put it back before she notices. The metal part of the frame stays intact.
The motor in my spit is balanced and blueprinted, mild street cam, header and monza exhaust, modified thrust washer, manual choke Weber DGV carb ( I would use the dual carb setup if I was redoing the engine now) single rail o/d and gear reduction starter. It's fast enough to get out of it's own way. Eventually I want to put the dual carbs on one of Ted Schumaucher's stage two heads on it.
Join the North American Spitfire Squadron Yahoo group, and work up your suppliers.
TS Imports, Ted
SpitBits, Nigel
Both are great guys and have forgotten more than most of us will ever know.0