Anything I need to be careful of changing oem fuel pump on a 400?

[WH23G3G]

Ok I was made aware of that 7psi is way too much fuel pressure on my 73 400 with the Edelbrock 600. Which makes sense because when it's shut off before driving it seems to be flooded and hard to start back up. I put a new pump on when I put the motor back in 4 years ago. But the pump was probably 2 years old sitting in the box before then. So I've gotten a new Airtex pump #6415 correct for a 73 Charger with 400-4bbl. It says max fuel pressure specs is 5.5psi out of this pump. So that should be right at or a half a psi low than the max wanted on this Edelbrock 600. Edelbrock said 6psi is the max to run these carbs. I've removed the alternator tonight and can clearly get to the pump now. But I remember something about a pushrod when I was rebuilding the engine. I remember I put in a new one. Is it going to make it difficult to install or can it only be installed one way?

[ACUDANUT]

With a Mechanical fuel pump I would not sweat anything. Going electric could mean getting a regulator.

[Ghoste]

The biggest trick is making sure the pushrod is up out of the way when you try and slide the pump arm in.  A little grease will help stick it up there.  I suppose if its high on the drive eccentric it could make it harder to tighten the pump on but Ive never heard of that.  If so, you can just bump the engine a part turn.

[myk]

When I still had a mechanical pump I "cheated" the pushrod into position, because I couldn't figure out how to keep it in place.  I merely slid the pump lever under the pushrod, pushed the two into the block as far as they would go, and then tightened the pump to the block.  The motion of tightening the pump to the block pushed the rod and the lever into their proper places.  I don't know if that's a satisfactory method of installing the pump and rod but it worked and never failed.  Good luck OP...

[WH23G3G]

So I removed the fuel pump tonight. I see the pushrod in there. It almost appears that it is down below where the pump was. So just to make sure because it's been years since I've had the motor apart do I need to push the push rod up a little enough to slide the end of the pump arm between it and then bolt it down?

[Back N Black]

Correct, push it up enough to slide the pump arm in there.

[dual fours]

Don't forget the gasket.