Sometimes I forget what a great resource the factory service manual is. According to it, with a warm engine, pull the plugs, lock the throttle and choke wide open and then do the test. No mention of the fuel supply. or coil power. The Hayes manual does mention disconnecting power to the coil but no fuel supply comments.
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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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