you state 1-5 have comp of around 100lbs,,6,at 10 lbs,,then state 3 cyl,s working and 3 not so here we go,1 check intake manifold bolts 2 check plugs and wires and cap also point cam in dist 3 remove VC and see if cam is flat,push rods off or bent,broken valve springs,rocker *** condition,,4 if nothing found remove rocker *** and inject shop air in each cyl note where air escapes...doc
