I've owned many muscle cars but this is my first Grand National. I have a 1987 Grand National with 28K, that I got last week. Engine compartment looks stock, I noticed it has a larger down pipe, ATR Cold Air, Test pipe and cat back system. I have not taken it to the strip but it feels slower than my LS1 Z-28 convertible that turns 12.89 @106. I would like my Grand National to do about the same, and keep a mostly stock look. I was thinking of getting a larger stock location intercooler, but I'm not sure what to do and don't want to spend a ton of money getting there. Give me you opinion, Please. Thanks