Suggestions for new design Aluminum Mopar SB clean slate (kind of) cylinder heads

Good point! If the valve cover rails were a smidge taller, we also wouldn't have to notch our valve covers to gain manifold clearance.

I bought two sets of these and never worry about that issue again.

MediceMfg ...Medice Manufacturing Head Space Valve Cover Spacers and Engine Storage Kits (Stor-Em)