best racing ign system.

So - does the rule book mandate that the ignition appear stock for your engine, or that it just appear to be stock for something? If they have worded the rulebook badly enough, a set of eight totally stock LS1 coils (unfortunately, Gen III Hemi or Pentastar V6 probably aren't going to be as easy to find a way to install here) and a stock mid '90s BMW six cylinder crank trigger might fit the letter of the rule and would clobber just about anything your competitors are going to be running.

If that's too much creative rule interpretation, I'd either use the FBO box or a good quality GM HEI module stuffed inside the distributor. FBO has a specific Pertronix coil they recommend; for the HEI, I'd use a Bosch coil for a 1987-1991 BMW 325. I've seen that coil beat the allegedly hot yellow coil by 5 horsepower... on a four cylinder engine.