My Bird corners so very flat on the street there is no boat like handling anywhere. Firm and stable, It's not a competition car, but it can hang with the newer iron on the streets in a corner. This is in a stock restored car with sound deadener, AC, 400/461 and a wide ratio Muncie.
Front suspension: Eibach dropped springs, KYB GAs adjust shocks, 1" front sway bar, 20 year old poly bushings, subrfame conectors, Poly sub-frame bushings. Rear Suspension: '81 WS6 Trans am rear springs with poly bushings and KYB shocks. Stock control arms. Will be upgrading to a fast ratio steering box eventually, big improvement. Most of the parts came from my Vintage racing Firebird back in the day. I would not hesitate taking my present car to an open track day at Sebring if I could.
Also If I could, I would do the Guldstrand mod for the upper control arm, I did that on my previous Bird and the additional castor made a difference for the steering to return to center at track speeds. I have 1 degree negative camber and as much Castor as I can get into the fronts with the shims.
You could spend a lot more money and will not be much better than what I have done for a street car. Mine has no real "Bling" factor, it really just looks stock, but performs well. Less than $1,000 for everything.
For a race car/track car, contact HO428 and his vintage racing suspension specs. His race car corners flat at 140 plus mph on Turn 17 at Sebring, no small feat!
