72 LeMans project... what to do next?
I have a 72 LeMans that I put back on the road a few years ago. It's got a Pontiac 400 with mild cam, Edelbrock Performer intake, Holley street avenger 670 carb, aluminum radiator with electric fans, TH400 auto with 2.78 gears in a GM 8.5" rear axle. I also put a Hotchkis spring and swaybar kit into it, which tightened up the suspension a lot.
There are three major mechanical things I want to do the car still, all will cost in the same ballpark $ wise: 1) getting functioning AC 2) installing the TH200-4R that's in my garage 3) Ditching the carb for EFI.
I have some of the AC parts, and intend to use the factory setup inside the car, while converting to a modern style compressor and R134a, I estimate I need about another $1000 worth of parts to get it working.
I have a TH200-4R (BQ code) that I'm going to put in place of the TH400, but I will need to at minimum change the rear axle ratio from 2.78, probably to 3.55. While I'm at it I'll also put in an Eaton Truetrac, and potentially new axles and aluminum driveshaft, estimate $1500 total.
Also thinking of going the EFI route. The carb has a couple spots where it goes lean, and chasing it is driving me nuts. (I have a wideband O2 sensor installed to help in carb tuning). Looking at a Fitech setup, and will need to upgrade the fuel system. Estimate $1500 total.
Looking for thoughts on which should be the next priority?