Is it ok to use stainless steel valves with stock iron valve guides? If so what clearances should be set at?if not What is the recommend clearance to run with Bronze guides with stainless steel valves for street use & occasionally strip with cast iron headsalso whats the better seal to run, umbrella style or posi style valve seal. Single spring with damper .520 lift

 

BB, see my reply on your other thread!