oil pressure and crankcase pressure

every screwed up relief I have ever had the misfortune of running into would lose pressure, not gain it.

if you put the rocker shafts on backwards you could be restricting oil there and increasing psi.just a guess
what do you mean by backwards? Rockers only go one way pushrods go in the little cups at the end of them. Did you mean on the opposite side they came off of when you said backwards?:read2: