Holley Sniper Hyperspark Install Issues

I need some direction on my install. I’m installing a Holley Hyperspark 565-306 on my 440. I found TDC in cylinder 1 using a TDC whistle. The rotor lined up with the previous owners #1 mark on the cap and I confirmed by looking at the balancer In the front of the motor. I pulled the older mechanical unit and slid the new Sniper unit in. However with the position of the rotor as is, it will not allow me to fully rotate the distributor to phase it using the provided clear cap (pictures for clarification and visualization) due to interference with the passenger side cylinder head.

Is this not the number 1 cylinder? I’ve got the whistle hooked to the front most driver side cylinder.

Am I able to change this rotor position while installing the Hyperspark?


Thanks.

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