I never uninstalled the cam for this engine and same with the lifters, it currently has in it the stock cam and stock hydraulic lifters (the old engine I had is the one that had solid lifters) and I set the valve lash like so, I tightened the lock nut right until I could not spin the push rod with my fingers and then went only half a turn. I have not tested under the manifold yet I’ll have to do that tonight, and I have not checked fuel pressure, I wouldn’t imagine that fuel pressure is the problem it has a brand new mechanical fuel pump that was on my other engine and running perfectly fine but I will check it just to make sure.