360 magnum build

Tony,the springs go .600. I checked,assembled my O.O.T.B EQ's. No valve job.New S.I valves. Total clearance was .580 guide to retainer,using the matching Hughes 1110 retainers. I usually use .050" clearance,as acceptable(Howards spec). Basically,.530 in my opinion. Take the guide cutter,call it a day.