i had a 350 motor bored .40 over with a dune port job. also had 34 pj carbs and cpi oof's... bike ran ok, but top end sucked. dynoed the bike at 48 hp , bike read bad rich on top , put my fmf fatty's on and dynoed at 51 after i jetted down alittle... bike pulled like crazy with the fmf's.
the cpi oof 's were to much for the portin and 34 pj carbs.
ran better one i put some cpi inframes on it.