357 SBC...getting no spark..

[musclecarmatt]

Hey guys...i having problem with getting no spark to the plugs..it turns over fine but not getting fire in the cylinders....I have a HEI distributor...already swapped in my spare HEI coil and also another module to see if could be either one but made no difference.........going to check see if i getting 12 v going to the distributor.....could be the ignition switch?

Before it quit......I had it running for a minute and i went to give a quick rev it sputtered and just died.......this is following a similar symptom last saturday going down the highway and it sputtered and almost quit for second then went back to running good.....thought it was some trash or something in the carb but must have a ignition problem somewhere?

Any ideas?

Matt