Pro Flo 4 Timing

Bringing this thread back!

It's the biggest thread I have found on the Pro FLo 4 system so I thought I would chose this one to post in.

First off, just got my engine back from IMM. Brian dynoed it with his carb and distributor but it does have the Pro Flo intake and rails on it. The car is not ready for the engine so I am just preparing.

For right now I am trying to get a couple of final parts in preparation for the install.

Should I just go ahead and buy the MSD rotor? I have the Edelbrock supplied distributor that came with the Pro Flo 4. MSD Ignition 8421 MSD Distributor Rotors | Summit Racing

Also, the car is stripped and has no wiring. Should I go with an internally ore externally regulated alternator. I am going to be running a fan, EFI w/ in tank pump, and EPAS power steering. No stereo, no other electronics. What amp alternator?

Brian built my motor too. It's been running good for the pat 6 years. I do plan to give it a refresh though before I go EFI. Just to make sure it's still healthy.


The easiest way to deal with the timing issue that Edelbrock says doesn’t exist is to purchase the MSD adjustable rotor. The correct number is earlier in the thread.
I’ve deal with Brian at IMM. Great guy. I’d love to know your engine specs and dyno results.
As far as the alternator goes, the power master units fit obviously as they are based on stock units. As long as your at idle amp demand is 50 or below you’ll be ok.

@BergmanAutoCraft did you see on the Edelbrock forums how Edelbrock shutdown the threads regarding the distributor phasing? They probably figure that the small block Mopar is more of a niche platform, so they don't want to believe that there could be issues.