I'm having some weird issues with my 4wd, first off I'll start by saying, when I first brought her, no compression in cylinder 5 at all, 0 psi, after replacing head gasket I finally had compression but now car still misfires, I could've sworn I re did timing correctly, I've replaced sparks, leads, checked dizzy and she was good, all new injector seals, still feels sluggish when driving, when accelerating car feels like it's shaking, can feel it through the pedals, any advice would be much appreciated, thank you