Looks like you've got the dropped base air cleaner from Butler. Try making a run without the air cleaner on it and see what happens. One of my customer's did that based on my suggestion and his car picked up 1.5 tenths. I believe the air cleaner element comes too close to the middle restricting flow. What rear gears? Transmission & converter? Cal tracks?
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62' Lemans, Nostalgia Super Stock, 541 CI, IA2 block, billet 4.5" crank, Ross, Wide port Edelbrocks, Gustram intake, 2 4150 style BLP carbs, 2.10 Turbo 400, 9" w/4:30 gears, 8.76 @153, 3100lbs
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