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Originally Posted by
Peteroses1975
I have a srt6 I want to add a 185 pulley I now have the 65 mm pulley with dual intake and tune do I need the manifolds and fuel mods for the 185 to work
DylanHunt is correct, you will be purchasing a new motor with that setup..The best stacked setup is a 70mm SC pulley and 181mm crank pulley, which is about as far as you can go without over spinning the SC bearings. You can turn the stock SC pulley to 70mm without spending a fortune and have good reliability. You will need a real upgrade to your fuel supply, I have the pump upgrade, 550cc injectors, regulator, good luck.