I’m toying with the idea of moving to electronic fuel injection on my '71 Cuda.

Has anyone on here any experience and success using EFI on a RB? (I'll be putting in on my 540" Frankenstein motor (4.25 stroke, 7.100 rod, 4.5" bore, Indy Intake and 440-1 heads)

I like the idea that the systems are self-learning and can optimize the fuel curve for the motor from Idle to WOT.

But I don’t know a whole lot about them, hopefully once you get it somewhat tuned you can tell it to stop “learning/adjusting” for a given day so it will run consistently. And I’m not sure if anyone has had any success running fuel injection on the throttle stop (I’m planning on doing some 10.90 racing this year)

Also need to make sure they can work with alcohol (the injectors, pumps and the fuel management system)

It would be cool too to be able to switch over to gas or E85 at any time. (or have a separate fuel cell to start/warm it up and after the races to get all the alcohol out)

(I don't know this for a fact but I thought I heard on Drag Week that Larson's truck was using both Alcohol for racing and then switching over to gas for the street and he didn't have to do much more than change the fuel curve set up and switch the fuel supply source and the computer adjusted the fuel curve and injectors)

Who's EFI management system should I consider?

What should I consider as I contemplate this move?

I've been doing EFI for Mopars for a long time. Check out my web site. Totally self learning systems are great, but for a bracket car I'd suggest that you still want to be able to access certain areas of the program, and you want to be able to datalog each run so you can see which way the system is adjusting. IMO: better than a carb but not totally hands off.

Yep. I run the local 6.50 index stuff some time. I slow it down over a 1/2 second in the 1/8 to hit the index lol
I just don't open the throttle body as far. Made a screw adjuster to limit WFO.
It's easy to dial on gas. Alcy should print slips like a xerox machine!

Wade have you talked to Patrick Melson? He could be very helpful guy to contact on this subject. He recently attended the Holley EFI training. Jim