Probably a strange question to ask in the midst of a fuel shortage, but does anyone have an idea how much the 4.0 will put up with? I don't plan on doing any more internal parts in this engine. My plan is to run this stock engine while I build a different stroker setup to swap in later. The only mods to the stock engine is a high volume oil pump, MLS gasket, head studs and roller rockers. I'm currently running 240 whp at 5 psi, but I would like to turn it up.