I'm due to buy a new ignition system in the near future for the sbc. I've heard something like a quality distributor and 6A L box and coil can knock even .2 seconds off a quarter mile. So what would I need for the best results for the least amount of money... do I really need the ignition box and coil? What kind of results could I expect... or is it even worth it to throw out my cheap temporary proform HEI?