Cooking ballast resisters

if you already have an electronic distributor, i'd pick one of these up.
http://www.summitracing.com/parts/SUM-850610/

they are made by msd, you eliminate your stock bal resistor b/c the box plugs right to the coil and the dist....the ignition system is now completely independent of your stock wiring harness..the only thing your stock harness will do now is charge the battery and start the car....for $150 you can't beat it for a digital ignition system with a rev limiter and even a signal light....i never had any luck with the stock boxes, i know many have but i bought ones that were bad out of the box, same with the bal resistors...just my 2 cents