Why is oil coming out of these?

dano said
I had to clearance my Weiand Stealth to clear my Holley valve covers.....both parts are made by the same company and they still needed "fit". My neighbor spent two days grinding the ARP heads studs of his sons BBC because they interfered with the headers and we all know how well their main studs fit the oil pump on SBM's....Welcome to engine building.
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We had to use head bolts with the ARP head studs for our 512 stroker because the 2 center outside studs would not clear our TTIs. And like almost everybody else has already said, we've had to notch most of our aluminum valve covers to clear the intake manifolds.