dump valve type

[LYNCHSTAR]

is there a certain dumpvalve to use on an engine that boosts over 20psi.

[s3irios]

I can tell you what dump valve NOT to use in general. The pull type dvs. SSequential etc.
They need a lot of force to be opened and they dont work in the 5. Worst 120 bucks ever.

[bood]

i have a turbosmart blow off valve are these suitable?