Hey i own a supercharged VT Calais international. I'm pretty sure its stock, could you recommend a performance pulley that will suit my engine and hopefully gain more power? Thank you.
Posted by on 26 May 2018 08:59 AM
Generally speaking, if your car is in good working order, you can run an 8psi pulley on 95 octane fuel, or a 10psi pulley on 98 octane fuel. 

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