Get a vortech not a powerdyne, i have heard they are just cheap and dont last as long.
Go the vortech V1 T-trim, they go awesome, and sound awesome.
Guy i know has one on his VY SV8, its just got diff gears, lifters, valve springs and a few other things, no cam or anything, just running the V1 at 9 or 10 psi with a cooler and he is making 370RWKW
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