won\'t get spark
I have a 1987 Chevy 3/4 ton 4 X 4, 350, 5.7 liter throttle body, manual tranny. It won't get spark when I drive it enough to get it warmed up. It will turn over. It gets gas. But there is no spark. I've changed the coil, distributor, alternator, battery is good, checked all electrical connections. But it still won't spark. Sometimes out of the blue, it will start right up when it's hot. Does anyone know or can help me figure this out? Also has anyone heard of an MSD 6AL go bad? Thanks in advance for any advice.