Best way to slow a car down ?

[Chris "drooze" Wertman]

Originally Posted by CJohnson

Just wondering if anybody has any experience on how to effectivley slowing a car down about 8 tenths to 1 sec. in order to into two classes. The car should run somewhere around 11.8 - 12.0 flat out. looking to slow it down to 12.8 to make the sportsman class brake.

Thanks.

Pull a bunch of timing ?

edit...Sorry didnt see someone else had already made the correct changes...Z28.....