I'm almost certain that my GSL-SE has leaky injectors considering how often it floods, even now that the weather is warm. The car is coming up on 40 years and I doubt that the previous owner ever got them freshened up, so it's probably about time. I know most people recommend getting injectors sent out to those ultrasonic folks, but I'm getting some work done on the car in the near future so I'd prefer to have it mobile so I don't need to figure out towing logistics. Have any of you guys ever rebuilt your injectors? What kit did you use and what tips should I know about installing them?

These are the two kits I'm looking at on eBay:

https://www.ebay.com/itm/192886930114
https://www.ebay.com/itm/264680939809

It seems easy enough (famous last words)

 

I don’t think either of those kits would do anything for you. your injectors are not leaking because the O-rings are worn, they are leaking because you have gunk built up inside the injector between the seat and pintle. Your only option is to get them ultrasonically cleaned and flowed by one of the many good shops out there. I have had a couple of sets of LE injectors cleaned and the before and after flow rates were significant.