Comp Cams Xtreme Energy XE253H Three-Valve Cam Test - From Mild To Mild
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The Bassani headers featured 2½-inch collectors feeding 2½-inch exhaust pipes. To test whether the collectors and pipes were in any way restrictive to this test motor, we had Bassani whip us up a set of 3-inch collectors and pipes. There was no gain whatsoever from the larger collectors on this test motor. View Related Article
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