More Pony Power

[StreetStang37]

Actually, I've read of bone stock 5.0's dynoing at about 235 hp and 325 lbs. tq. so his statement about being underrated wouldn't be too off. But MOST Mustangs do dyno at about 190 rwhp stock.

About the car in question, what 1 3/8 headers do you have? Most I've seen are either 1 1/2 or 1 5/8's. Also that 75mm IS way too big. The stock 60mm would probably makes more power. I wouldn't go with anything bigger than 65mm unless the motor is really wild and even then 70mm would be the max. unless your running a built 351. Also the bigger injectors are probably hurting you unless you have it properly tuned (not just the mass air meter calibrated either). Your probably hovering somewhere NEAR 250 hp

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1993 Mustang GT - March Ram Air & Pullies, K&N, C&L 73mm MAF, 3.73 Gears, Super Competition Hooker Headers, 2 1/2 in. High Flow H-Pipe & Cat Back, Pro 5.0 Shifter, 16* Timing Advance, 8.5mm MSD Super Cunductor Plug Wires, Romoved front Sway Bar, Pro-Shift Lite, LX lights