350 sbc issue

[78k10revival]

Hey guys. I know this is a good forum but I need help with a 350sbc. I have a 1978 k10 4x4. Truck ran this morning. I changed the spark plugs this afternoon and now won't fire. Have fuel and spark. But it seems like the spark is kinda intermittent. What could my issue be. Thanks in advance

 

[pontiacgp]

did you take the wires out or just remove them from the plugs....did you use the right plugs and did you gap them correctly

 

[78k10revival]

Just pulled them off the plugs. Replaced them with the exact plugs that were in it and I gapped them at .45

 

[78k10revival]

The spark isn't blue. It's orange and not real constant. I was thinking maybe the module is going bad on the hei

 

[pontiacgp]

sometimes everything works ok until you disturb it. I would check the wires before I started changing parts.

 

[78k10revival]

It was just weird cuz it ran about an hour before that lol.

 

[565bbchevy]

Are you sure you put the plug wires back on correctly?

 

[78k10revival]

Yup I took them off 1 at a time