I found a shop in Ohio that do work on customer cars...
https://buschurracing.com/br-cart/
Not sure how far of a range that would be for you but they're an original DSM tuner shop from the 90's its worth a shot for some insight if nothing else... Hope that helps
How goes it guys and girls, im a noob 2G owner... Just picked up a 97 RS 420a N/A 5spd, its a 20 year old car that wasn't very well taken care of, until the Guy I got it from purchased it but unfortunately gave up on it as well... so it has some issues... It seems like the timing is off, it...