Hi, Just having a bit of a proble making the valve cover leak proof. Any tips would be welcome. It appears to be staight and flat but the darn thing leaks like a you know what! I have tried two types of sealers and new gaskets to no avail. HELP, DAVE
1940 GMC 1ton, red/black flatbed stakeside
1998 Dodge 3/4 ton cummins pumped and lifted
