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Do they all take this much grinding? Tons of grinding on the ductile rockers then when you get it to clear the spring and retainer the 3/8 PR is pressed against the side of the PR tube 
I am building it for a friend and he wants it to hold up at 8000 RPM so I am a little leary to run a 5/16 PR.
Everyone kept telling me when I build a W2 I won't want to build a SB with anything else but this is a real pain 
Hey Dave,
How much lift is he running with the ductile rockers? Depending on this valve lift, you could use a lash cap, get better geometry, and gain some needed clearance. Of course, the pushrod side is gonna be fun with a 3/8 pushrod though. 
Mike Beachel
I didn't write the rules of math nor create the laws of physics, I am just bound by them.
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