I have a 1998 GMC K1500 5.7. I bought it from a guy. He said it die on
It died on him pulling in to MC Donald’s. Some where down that line. A mounting bolt was broken on the distributor hold down. I have replaced the distributor with a new one. I know it is installed correctly. The truck did start and run. Like crap. So new plugs and wires where then installed. AC double platinum plugs. It runs better not. But not well enough to drive. The ideal is very low to extremely high. We unplugged the mass sensor and it ran really good. But it was idling at 3200 rpms. Any help is very much appreciated. Thanks in advance Kenneth.