Correct - spinning lifter doesn’t matter re oil hole as flat tappets spin by design so shouldn’t matter with rollers. That being said - I also don’t understand how your roller lifters are spinning in bores?
Re: the clearance, when in Norwalk Randy explained that there may be tight spots on some linters. In this situation if other clearances are ideal, you should carefully grind/sand the plate in the tight area(s) to fine tune the clearance.
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Will Rivera
'69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears
'64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears
'69 LeMans Vert, 350, #47 heads: Non-running project
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