BBtruck· Premium Member
Misfit try soaking with PD blaster or some other non-flamable penetrating oil, start the engine let warm up, repeat the process a few times. I also had to raise and lowered the engine to get a better angle to some of those manifold nuts. Getting the manifold nuts was the easiest in my install, with everything else being harder. I gave up on the O2's and A/F sensors, never got them out. Brought new sensors instead, they were not cheap. Wish you was closer to give you a hand or two.