I would do shorty headers and an offroad h/x pipe. A friend of mine did these on his 88 GT and it really pulls hard now, this might end up bein' a little more than 300 but you can find used headers and h pipes on *cough, cough* corral for cheap, hope this helps.
RYAN
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94 cobra, steeda tri-ax, ultra flo's
14.2 @ 99 (stock)
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