Have a 95 3vze runs OK. Needs injectors (have the flamethrowers on the way) 1# injector took a shat. But top end has a pretty bad knock cold or warmed up. You can really notice it when its under load. Its coming from the passenger side.took the valve cover off and didn't see anything noticeable. No metal or flat lobes. Oil is clean and golden. Also oil pressure drops when it gets warm. Drops to the last section of the gauge. Any thoughts? Thanks