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camgrinder camgrinder is offline
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Join Date: Feb 2004
Location: California
Posts: 921
With pmo carbs I like closer lobe centers. like 108 degrees. this along with some more duration will pick the engine up in the 4500 to 6500 range. Im a little surprised Tony's engine fell off after 6000.
How is the distributor advance curve set? If the advance comes in too fast it can hurt torque.
When I see a dip in the torque curve like this, it usually means an exhaust system or intake system length. In a back up pull the dip might not show, meaning the engine just skipped a beat on this pull.
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John Dougherty
Dougherty Racing Cams
Old 12-08-2004, 09:13 PM
  Pelican Parts Technical Article Directory    Reply With Quote #120 (permalink)