Hei Distributor…which post is #1?

Installing an Hei distributor on the 318 in my Belvedere. Have searched and can’t really find what I am looking for. Motor is at TDC and when I drop the distributor in, it points at cylinder #7

Hei Distributor…which post is #1? For B Bodies Only Classic Mopar Forum

HEI Distributor. Which post is #1 ?

How to fix distributor position?

Accel HEI Distributor plug wiring - The 1947 - Present Chevrolet & GMC Truck Message Board Network

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MSD Ignition Products - Engine Builder Magazine

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The HEI Distributor: Clearing The Confusion And Debunking Myths