Check out Sinister Performance for OBD 1 and OBD 1.5 chip burning tunes. They also do OBD2 and LT1 tunes. They come highly recommended. I will be using them this spring when I pull my car out of storage. And yes, you will need to scan or they won't be able to help you. They are very familiar with Series 1 3800 SC cars.
Good luck with your tune, Dave
ty for the info but im going a diffrent way im selling all the stuff i have for a series one because all the money i keep spending is just going striaght to repairs and its just too much for the value of the car and i wanted to build a straight drag car, i started this project 2 years ago when i was single and now that i have a family and a house that dream has fadded