B&m 420
 

i just bought an Apache with the same blower if you don't mind what pulleys are you running and how much boost. Mine are underdriven thinking about 8% over and app 10 lbs of boost.

Tks
greg

Doubt that you would get 10# on an under driven B&M Blower. Attached is instructions with pulley sizes and boost. Lot depends on compression and engine size.

B&m 420
 

Thanks for reply sorry don't see an attachment. I should been more clear, plan on getting new pulleys to run 8% over app. 10 lbs of boost. Have intercoolers and 8:1 static compression. if could see attachment to [email protected] would be appreciated.

tks