You need to verify that your base timing and spark advance is rock solid before chasing other problems that may or may not exist. When the timing bypass wire is disconnected, the timing mark should...

I had this problem with an 88 s10. The thing would start up if you cranked the engine long enough to build up oil pressure. If you fed it fuel or the fuel pump relay was jumped out, the truck started...

Hi all! Picked up a 94 Sierra last summer for cheap, not running. Main problem was the distributor keeping it from running. Besides the shadetree previous owner's buddy swapping out probably good...