hey everyone, i just test drove a 98 gtp, and i noticed the boost gauge didnt seem to do anything. i didnt thrash the throttle either, but i thought that it would move under moderate acceleration. could it also be that they replaced the oem radio with an aftermarket stereo. also i noticed a little oil above the valve cover on the fron of the engine. is this just possibaly valve cover leaking? other than that it drove nice and everything. so any suggestions would be greatly appreiated.