Just what Eric said, it all depends on what you're using the car for. If you're just looking for a daily driver with some attitude, a 331 is capable of that. On the other hand, if it's going to be limited to the 1/4 mile, the 408 is the bigger, badder motor. I almost decided on building a 408 but the funds just aren't there, that's why I settled on the 331. I don't know what these 408's are putting out, but my 331 is going to be around 400hp.
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1989 Black Mustang GT Hatchback, Underdrive Pulles, Electric Fan, Cold Air Intake, Headers, Offroad H-Pipe, Magnaflow catback, Steeda Tri-Ax, Fluidyne Aluminum Radiator, Timing at 14*, 3.73's
Coming not so soon: 408w
Ricer Hater's Club Member #59
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