Originally posted by beepbeep
I suggest not to use wastegate spring as a boost regulator but either Dawes device or electronic boost regulator.
Spring is a fuss. Hard to install, hard to remove and you cannot crank down the boost if you need to. I would use 0.7 spring and cover everything above with a regulator.
i second that. I know what happens if you don't have a boost controller and or a a guage