i would check ur coil! i went thru a couple blaster coils just recently. and if u r trying to run a pointless ignition module in distributor they get fried to when u leave the key on to long. if u r using a pointless igition module check the specs for it. a blaster coil puts out to much voltage and burns up module, and if the module isnt working it wont let the coil put out spark. i had to use a certain mallory coil, a ballist resister (cause we came straight from fuse panel), with accel pointless igiton module. we fought the same exact problem (no spark) for a couple weeks before we figured it out. we got it to run, but got to where i didnt trust that type of system, plus it really clutterd things up in engine bay, so i dropped in a hei distributor. it started first try and a nice clean install.