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Old 10-04-2008, 12:34 AM
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1971WARBIRD 1971WARBIRD is offline
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Join Date: Nov 2006
Location: Troy, Ohio
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very interested in this.i have a 72 lemans/gto that will have a +.030 455-ported 197 HO heads-comp XE288HR cam-2.5ram air manifolds.was thinking(i know dangerous)that the mufflers would be okay just cruising around and open them up when wanting more performance.just wondered how they would do with about 525hp and 575lbs torque?

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