have a 79 b200 with 318, edelbrock carb and intake, hedman headers. i had bought an edelbrock chrome air filter and valve covers since my old ones were trashed when i bought the van. the new ones do not have the oil filter tube that you access from the hood. the right one only has the breather which is where i now put the oil in. these edelbrock valve covers will not keep a seal which is irritating since i have a jasper reman engine and a jasper reman 727 and the oil will end up on them all the time.. ............what is a -sturdy- valve cover to get? i like the ones that say Mopar on them but i dont want another set of lemons. thanks