i made 357/357 with out of the box tw170's, victor 5.0 efi intake and a small street cam ... all on a 331 ... thats about what you will see out of 99% of your stroker builds ...
i have a friend in south carolina that made 456 rwhp on a 331 ... HIGH DOLLAR parts, big $$$$ ... the twisted wedge cnc ported 205's, with a very light valve train ... he ran the anderson N91 cam, he had 11:1 compression and a hogged out trick flow r box intake ... 90mm maf, 90mm tb, 1 3/4 long tubes, lots of rpm (7200) and lots of tuning ... it takes come serious coin to put down 430-450+ on these little stroker motors ... 1.4 hp per cubic inch takes $$$$$$$$$$$ ...
Coin or labor, you're going to pay to go fast ... i chose the labor route ... 110 hours on the heads, 20 hours on the upper intake and need another 30 hours to do the lower intake ... im only hoping for 410+ hp ... 10's on a street car granny shifting and im good to go
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