First Start a No Go-Just Boom

[RestoCreations]

So i got on a roll yesterday evening and thought i could finish the car by 11pm. Well, here it is 3am and i have finally thrown in the towel. I'll only be slightly tired tomorrow.
Anyway, when i finally turned the key to attempt to start the engine for the first time, all i got was a click, followed by a steady crank, then a boom and flames out the number 4 exhaust manifold port. The battery is showing 12.4 volts, so i dont think the starter should be ticking. It does not sound like it is skipping gears. I made sure to check that it was in perfect alignment with the flywheel when i still had the bellhousing off of the engine.

1. How do i install the distributor before first start if i have the car at TDC? I pointed it towards the number 1 cylinder and then assembled my plug wires accordingly in counterclockwise order. I have the MSD Pro Billet Distributor and digital 6 ignition box with a blaster coil. Everything is hooked up correctly-triple checked. The instructions that came with the MSD Distributor to not offer any information for new installations. What information i could find on the internet simply stated that it did not matter where it was installed as long as the plug wires were put in the correct order. Is that true?

2. What is the correct firing order for a 427 FE motor? I am currently looking at my cam card and it does not state a firing order. I set mine at 1-5-4-2-6-3-7-8

3. What should the fuel pressure be? I set mine at 8 PSI

Anything else you can think of that i should check? Initial carb settings? I have a quickfuel carburetor and i have not adjusted anything on it yet.


Thanks!