Explosion, now no start.

[vikenabm]

Well it took a while, because I fried a few links and fuses jumpering the car too late at night and not paying attention. Now I can say the car is back to where it was before the explosion, when it just wasn't quite starting and was misfiring. It catches slightly and sputters just barely for a second. It seems to barely combust, and disconnecting the fuel injector resistor to cut fuel leads to a stronger sputter on the first try. It's like it is flooding before starting. then checking timing while cranking, I get almost no gun flashes, like it's not picking up a spark current. Pulling plug one and trying with plug exposed shows it sparking erratically and weakly and fouled but not wet plug.

So I think I have a problem with spark. I have tested coil and wire resistance, all fine, but I put in new irridium plugs after I tested compression, and i went with a colder plug due to my increased compression ration and plan to boost to 20 or 25psi eventually. I will try again with plain old copper plugs, retest coils and wires, check ignitor transistor, and report back here for posterity.

Questions: when people run colder plugs for high boost do they generally also have aftermarket ignition? WOuld there be any benefit to keeping my plugs and increasing spark power via different ignitor or coils? What are the best upgrades to the ignition, if any?