What is the correct way to connect the Alpha One shift interrupter leads with a DUI non-efi distributor? Going from T-Bolt IV harness to D.U.I.

Pretty sure attach it to the tach wire for these DUI app's.

I attached my to the tach wire.

Thank you, yes that is what I did and works good.

Hi everyone Roy here. Say I also installed the d.u.i. and just want to varify is that the green and white wire from my interrupter switch that goes to the tach .... right ?

I can’t speak to the alpha setup, but wiring the DUI directly to the battery and using the stock ignition wire to trigger the relay made a huge difference in performance on my setup. Anything less than a 12g to the DUI is inadequate.

Yes.The green/white is switched ground.
The other is always ground.

See this: