you can get whatever size t/b you want... it's all about $$$.... w/a "one-off" intake manifold, this will work out easily...
porting isnt hard, however, it's tedious and you dont want to screw up!
summit sells a porting kit.. you need air and a die grinder (NOT A DREMEL)...
i run a PTP ported/polished IM and a 55mm t/b.... (both from PTP)...
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