Thanks for the responses guys. Here is some info on the valves and springs that are installed on the heads. I would also like to add that I'm also using a roller cam.
Manley custom 2.150 intake valves and Manley 1.6 ex valves, springs are Manley 22440-16 Nextecks and retainers&locks comp 741-16 and 613-16, spring seats are Comp 4770-16, installed hieght is 1.850 spring pressure is 250lbs on the seat and 660lbs open at 650 lift
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