PM 9510 here also. Works great. No headers. It has 360 deg, "infinite" clocking which I would think should help a lot with headers. RobbMc also has infinite clocking.
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70 TA, 467 cid IAII, Edelbrock D-port heads, 9.94:1, Butler HR 236/242 @ .050, 520/540 lift, 112 LSA, Ray Klemm calibrated Q-jet, TKX (2.87 1st/.81 OD), 3.31 rear
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