I have a 71 1.7L with Pertronix, blue coil, Carbs and mechanical advance. Not sure how old the coil is and I want to replace it maybe with something that will give a hotter spark. What's a good system for this car if I want to keep the Pertronix & distributor? The Pertronix, wires, cap and rotor are new.

Thanks,
Spoke

if your plugs are fouling, you should find out why and fix that ...