So far, the biggest "gotcha" with the AFX spindle is the need to run large wheels. I looked on their website, and on the steering arm page, it says their steering arms will not fit with 17" or smaller wheels.
https://speedtechperformance.com/pro...mp-steer-kits/
As far as my driving skill, I'd guess I'm slightly above average (who doesn't?) but I've got no track time. I've got no frame of reference other than my '15 Charger RT, which I think is amazing other than the stock 20/45/245s are a little undersized for the power. I understand how a good suspension should handle, in theory. All my other vehicles have been trucks or stock classics. My first car was a '54 Bel Air, which makes a dump truck seem like a Porsche. Steering on one of those has got to be 7 turns lock to lock. I also had a '73 International Scout II, which rode like a stagecoach, minus the horse.
The current LeMans has a worn out front suspension, drag springs, CE drag shocks and 215/70 tires on 4" Prostars. 275DR out back. (PO setup). Anything over 70 feels like I could die at any moment. I'll still throw it into a curve at high speed and hacksaw it through, but I can tell it's not right. That's the whole reason I'm not setting this car up for drag racing, because street handling sucks so bad. I'd rather drive it on the street and enjoy than suffer 90% of the time for 10% drag use.
Any long-term reliability concerns with the SPC uppers or AFX spindles?