Aftermarket EFI configs

Getting ready to change my 440 over to EFI using the victor efi 29545 intake and throttle body. I currently have the msd 8546 distributor and the 6al-2 box. Will be controlling with a system similar to FAST but need to know what others have done to use this distributor and type box and control with the ecu. Msd wasn’t a lot of help. I believe I’ll have to lock out the distributor and get possibly a different rotor or something but has anyone else been able to control this distributor with an ecu and how? Thanks in advance!

If you are dead set on using that distributer than you will have to cut off 7 of the 8 reluctor tabs so that it has only 1 signal for the cam sync. You will then need a crank trigger at least. You would be better off getting a dual sync distributer for simplicity. If you don't care about Sequential fuel injection than you can use the distributer as-is but you give up some of the advantages of sequential EFI.

I have my 572 Hemi converted to fuel injection using a FAST XFI box and so happy I went in that direction. I used the MSD dual sync but that is configured to trigger off the leading edges and to make a long story short, needs a rotor phasing kit to make work because the relationship between the crank and cam phasing angle isn't right. A FAST dual sync would have been better option with the FAST XFI but it doesn't physically clear everything as well as the MSD unit.

AG

If you are going to squirt the fuel into each port at the correct time you need a different distributor. Best distributor for that would be the Holley dual sync.
You could use the MSD distributor if you batch fire the injectors but that seems like a downgrade given the parts that you have.
You might want to touch base with Rich at FAST Man EFI and tell him what you want to do. He can give you a parts list of what you need to buy based on what your goals are.

Did you try the adjustable rotor with any luck to fix your issue?

Thanks for the input. We will definitely be going sequential for this. My friend is the brains on this not me though but he’s used to direct injection more these days and NOT mopar configurations. Was just wondering if I could alter what I had somehow to lesson the damage to my wallet. 😂

The MSD dual sync with a phasing rotor kit will work with a FAST EFI.

FYI - I had a custom un-terminated long harness made and hid the ECU above the glovebox. With the Shaker scoop you can't really tell its EFI.
AG.

Looks like the msd dual sync is the way I’ll likely have to go. Do you or can you still use the 6al-2 with the dual sync distributor? Connector is significantly more pins. :-)

Awesome setup you have there!

Yes you can still use the 6AL but it doesn't connect to the distributor anymore. The distributor sends a signal to the EFI computer and then the EFI computer tells the 6AL when to fire.

Yes and as AndyF says, the ECM manages the crank and cam signals and it will control the 6AL box through the points input on the MSD box. That is what I'm doing. My 6AL box is mounted under the battery tray....
AG.

Are you ashamed of the EFI system?
I wouldn't be, I would shout about it from the rooftops.
No more cold or hot start and drivability issues like we had with the stock street hemi carbs

Since you are using a throttle body injector I would have no issues with operating the system as batch fire, as opposed to sequential injection. Stop and think about it, the throttle body dumps fuel into a carb style plenum manifold just like a carb would. And even with port injectors you will notice no WOT difference. I taught at a technical college, we had a 350 chevy and one of the older ACCEL port injection systems, with a sync distributor and a regular distributor. That I used to show students how to tune EFI. On the dyno it made no difference on WOT power. Sequential injection was designed for emission control at idle and low speed drivability. If you have any size cam at all you will never notice the difference. Sizing the injectors properly and setting up the fuel tables is what makes it run right.

He's running a port injection manifold so would guess he's going to use port injection?

I would run sequential. I think it's even worth the time (for driveability) to set up an injection end angle table.

Yes it’ll be sequential. The engine is 10.8:1, comp 256/266@050 solid lift with trick flow 240 heads and pretty sure I bought one if Andy’s billet valley pans. I sure his software will have every table known to mankind. Hopefully we will get it all figured out. I guess it doesn’t matter how the distributor is installed if the ecu is firing it eh? Just so wires are correct. 😁

Put the engine at 50 degrees BTDC, line up the sensors and clamp down the distributor. Just follow the instructions and you'll be okay. You double check timing with a timing light and then rotate the distributor to get everything lined up and then you're ready to go.

Using the FAST 2.0 and FAST dual sync distributor with the Edelbrock XT intake.
I had to clearance the stealth head a bit for the distributor clearance.
With the single signal (non-EFI type) distributor, you would have to run the injectors in batch mode where they all fire at the same time. Fine for the TBI type EFI units like the Sniper, but with the port injection you need a sync signal to run sequential injection firing only one injector at a time.
The Dual sync distributors already have the rotor phased for the EFI. The non-efi distributor would need the rotor phased, or the reluctor pin position re-drilled to phase the reluctor and use the stock rotor (after locking out the distributor advance,)