well i just bought a 98 cobra w/ ati & intercooler 42# injectors and an msd. it is detonating at wot from like 6000 rpm and up but at 3/4 throttle @7000rpm no detonation. i know it has a dyno tuned chip but the 42#'s were installed after the custom tune. other than that the car idles great, and runs fine. i beleave it has the stock fuel pump, is this my prob or should i get the chip redone? for now i will use the msd to back timing out but i want the fuel to be there.