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Discussion Starter · #1 · (Edited)
Just finished building my head and decided to go with HKS 272's, my car will be seeing daily driving and the 280's are just too lumpy.

My question is whats the most seat pressure you guys are running for a street/strip engine with that cam?

I have a 1mm oversized Supertech valve package with the dual springs and Ti street retainers. I want to shim them for the most pressure without worying about wiping the lobes. I plan to shift at 8500, But I may need to go to 9000 if I run out of RPM in 3rd (th400) at the strip.

Edit: Forgot to mention I will have 2 No2 kits on the car, 1 100 shot wet, 1 250 direct port.
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