Switching over to carb is easy. Performer or RPM manifold. Nice 600 - 650 cfm 4150 Holley carb, Holley Blue pump, Pressure regulator. Dist out of an 85 manual tranny car ( I have one for sale), Will need a module like an MSD or similar. Dont waste your time with a Duraspark. Or switch over to an HEI like one from Proform. 1 wire for spark and the other for tach. Very simple. Only issue you'll have with the Proform is that the low pressure line from the AC will need to be removed and you'll need to run a smaller 10" air cleaner and will need an elbow on the heater core hose coming off the manifold to give the distributor some elbow room to adjust. Run a ported vacume line to it and viola.

You can use the stock throttle cable by taking off the bracket it was on for the EFI and bolting it on behind the carb on the manifold.

If running a 600 CFM Holley the only real adjustment you need to make is for the idle mixure. A double pumper will dump alot of fuel if you have small heads (E7's). A regular mechanical secondary will do fine. Stay away from the 4160 universal Holley carbs,.. bleh.

The only real disadvantage to running a carb is your fuel economy will not be as good. You'll lose 3 - 5 mpg.

I love carbs on a 5.0

Hurst