Quick description 408
360 block decked to 9.600, .040 felpro blues, Indy rhs X heads by Brian at IMM, Hughes 1.6 rockers, Hughes retro hydraulic rollers lifters 5321 and Hughes HER2836ALN-10 cam.

Following Hughes instructions checked the sweep that looks great with no shims, it sweeps from .120 from the intake edge of valve through .110 center to .130 from the exhaust edge.
Adjusted the checking lifter to 2.170 which simulates .084 of adjustment at the rocker into the lifter. Set my rocker ball stud protrusion to the .320 figure as recommended and adjusted pushrod to take up slack. Do a lift check and .532 supposed to be 544. I follow the directions and adjust the push rod shorter and extend rocker ball stud again and again and yet again. So I finally get a best of .543 lift but the ball stud is protruding .520 and like 5 threads out of the rocker bottom.
Hughes directions say not to extend the ball stud out more than .400 on solid roller cams, this is a hyd roller though. The hughes directions say the best lift number is the best geometry makes sense. But isn't that a too much ball stud protrusion?

Give Brian a call @ IMM. He'll get you on track. matt

Thats way to far out... normal would be 1 1/2 threads
below the rocker... you could lay a straight edge
across the center line from the valve side surface
to see where it should be

Thank you for advice evryone. Made some calls today and those are the inefficiencies of the small block. So i will set the ball stud legth to .350 out "1THREAD" and loose some lift.