-Quickdodge--I looked at doing the overdrive thing at the beginning of building the car, but a local custom shop here told me I should be able to get 18 to 20 hwy miles with a fuel injection and 3.23 rears (driving 65 of course)

Has anyone done this swap? Overdrive 518 on a 727

I will work on the distributor first, then a cam swap, and the overdrive as a last resort. I am afraid if I put an overdrive in, I will have to cut the driveshaft tunnel again.

My P-J system is the older kind without the oxygen sensor. I can upgrade it to the new system with the oxygen sensors, but that is a computer change and an adapter for the wiring harness. I may have to do it later.

thanks for all the replies.