EDELBROCK PRO FLO 4

I just bolted a efi pro4 on a 416/340 block edelbrock heads. Yes I had to grind on the intake to get bolts to fit in #3 and #6 inside intake holes and slot all bolts to heads as the ports lined up but holes were 1/6 high for bolts to fit. And cut 2 bolts shorter. And if edelbrock would raise there land on the heads for the valve cover gasket .250 we would not have to grind our valve covers. Trickflow is next for me.