Has the Valley Pan been checked, to make sure the lifter tie bars aren't kissing the underside of the Valley Pan? After the windage tray, roller tie bar hitting the valley pan is the next common interference point.
if these were iron heads, I would suspect that the pushrods are dragging on the heads, due to the 1. 65 rockers. But the Kaufman heads have enough clearance, right?
(Just FYI Joe, often when you put 1. 65 rockers on iron heads, you get interference between the push rod and the head casting. It can result in slightly bent pushrods. I would imagine that aftermarket heads will clear)
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I could explain all this to the girl at the parts store, but she'd probably call the asylum.
White '67 LeMans 407/TH350/Ford 3.89... RIP
Red '67 LeMans. 407/TH400/Ford 3.25
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