Well I got my first 427 from scratch running on the bench today and this seems to be the 427 beginner thread so I have a couple questions.

Does the 427 act differently then the 7747 in that when turned on the check engine light comes on and stays on without a blink?

Does the 427 act differently then the 7747 in that when turned on the fuel pump runs continuously? No prime then off?

That's what mine is doing and I'm not sure if I have something wired wrong?

Check engine light goes off when I spin the distributor and I do have spark, injector firing, IAC moving all looking good but have not hooked up for data yet.