Streetfire Ignition Only Likes Accel Coil

Thanks all for responses.

Issue Resolved (Cross Fingers).

For those that are interested here is what ended up happening. Took ohm meter and checked all the coils...actual resistance was significantly off from advertised with the old school Accel coil being highest (MSD=1.2 not .7, Pertronix=1.6 not 1.5 while old Accel was over 2 not 1.4). Because had no other ideas put inline resistor with the lower coil to total 2.4 ohms and duster ran. Tests showed system would work with any resistance over two. Maybe too much current for something weak in box otherwise? All guessing as I’m not an electrician. Regardless we put in another streetfire box and has run few hours now with the MSD blaster coil.