Ford Repair: 1988 Bronco 302 efi to carb?, holley carbs, double pumper

Question
Hello Steve,
I have an 88 bronco that I want to rebuild. I need some technical advice about converting my efi 302 to a carb. I already have a roller rocker motor out of a mustang that I want to put in it but can i use that with my existing efi parts? What will I have to   do as far as the computer and sensors are concerned. Any advice will help me. Thanks.


Answer
Blake-

  It's actually a pretty simple swap.  Basically all of the computer/sensor stuff can be scrapped.  You won't need any of it.  What you will need...a carb (obviously), a new intake manifold, a new distributor, an ignition control box (like an MSD or Mallory box...I've had good luck with MSD 6A boxes so long as they're not exposed to significant heat), and a carb fuel pump.  The EFI pump is way too strong for a carb so you'll need something like a Holley carb electric pump.  The ignition stuff is pretty straight forward, but for a working tach you'll need to find the tach wire in the ignition wiring harness and attach it to the positive side of your coil.  I know in Mustangs this wire was green with a yellow tracer.  It may be the same in your Bronco, but it's good to double check.  For a carb I would use something like a Holley 600cfm double pumper or a slightly smaller Carter carb.  I had a 625cfm Carter on my Mustang before I switched over to a turbo'ed EFI setup and it was a little too much for the motor.  One point worth stating is that if you have an automatic transmission that has overdrive (like an AOD), you'll need an adapter for the TV linkage on the transmission since AODs never came on carbed motors.  One is (or at least used to be) available for Holley carbs through Sacramento Mustang, but they retail for just under $100.  If you have a 3 speed like a C4 then all you'll need to do is make sure the carb has a kickdown linkage.  Mind you I got my old Carter to work with my AOD...but I think that was just sheer luck.  Hope this helps...let me know if there's anything else I can clear up for you.

Steve