HELP!!! Hughes Retro Fit Roller Lifters Problems

That pressure sounds way too high and it may be indicating that yes, you have a big problem. Didn't you changed the cam and lifters as well as heads? Was the oil pressure more normal before that change? What makes this mystery so wierd is you can index the cam to line up the oil holes and get plenty of oil to the rockers. Otherwise I would venture that there was no oil going to the cam or beyond, as in the cam doesn't have the oil holes or the cam bearings are not in the proper orientation.