funny..thats the exact opposite i did on one of my motors...oddly enough i've had ALOT better luck getting the sheetmetal $30 mildons or moroso's to seal, than i have with the edelbrock and mopar perf cast aluminum valve covers. on a 318 i went back to the cheepo's instead of the EDL because they leaked something terrible no matter what gasket/sealer combo i used.. i recently bought a 408 crate that has the pretty mopar black ones that the other fellows on here posted pics of...i love the look...but on these ones i can't get a breather combo or the oil caps to stop that annoying several drips every time it gets hot...anyone have a better idea on how to fix this? best combo so far is the evap style breathers...haven't replaced the caps yet though...sorry to hijack your topic.lol...but as far as clearance you're fine...just carry a rag.lol