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Old 05-25-2009, 02:32 PM
cobraviper_99 cobraviper_99 is offline
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Join Date: Nov 2003
Location: West Barnstable, MA
Cobra Make, Engine: Shelby CSX4252,aluminum body, 427 side-oiler, Webers
Posts: 138
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48IDA's. Originally set up by Total Performance in Wallingford, CT. The engine is a new-old-stock side-oiler, Shelby aluminum heads, Comp roller rocker solid lifter cam, MSD ignition. I should quickly mention that after the engine was originally built, the rings in a couple of cylinders scored the walls before they were seated in properly. Compression was way off and it was a while before I was aware of it. I could never get the Webers dialed in and I'm glad I didn't make the assumption that "Webers suck" and blame them for the lousy performance which many people do. Once I had the engine freshened up and all was well compression-wise, the engine responded to the Webers the way they should. That's another very important lesson: Webers have a low tolerance for bad compression, leaky valves, feeble ignition, or any other engine difficulty that a conventional induction system wouldn't expose.
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