[jim_howard_pdx]

I did not mean to say two or three degrees positive chamber on the drivers side. Sorry I put down 2/3 which means two thirds of one degree on the driver side, and 1 and 1/2 degrees on the passenger side. The tires need to ride flat to the angle of the roads built in curvature or the car will pull. The drivers side is always less than the passenger side. Neither side is negative chamber.

For the 1" drop, it will not produce negative chamber during cornering because the stock A arm is just too long. All the Shelby drop will do is create neutral chamber.

If you look at any early mustang cornering at speed you will see that the wheels are still excessively positive in chamber. Usually the inside tire will have nearly no road contact at all. Most of this is due to the torque of the unibody. I use subframe connectors to improve stability. A 10 point roll cage will put the car at 1.0 G with the Global West negative chamber arm. This arm really will get you negative chamber when you load.

Shelby had his team dial in about 1.5 to 2.0 degrees of negative chamber at the alignment end, so his cars would corner better. Remember that the Shelby 1 inch drop creates neutral chamber during cornering not negative chamber. By alignment, he dialed in the negative chamber he needed by the track he raced. This preload allowed him to scoot around the Corvettes and Jaguars.

The negative wedge plates allow you to get 3-4 degrees preset negative chamber on the race track. This is outstanding, but tire wear will be hard. They do provide a little more negative chamber in cornering, but the body flex of the unibody usually counteracts that slight improvement.

The Global West arms or the Total Control Product arms will give you true negative chamber. But you still need the monte carlo bar and export brace. Then consider welding in front torque boxes and running a sub frame connector. Some racing classes forbid running non stock A-arms in order to make things fair--so the early year Corvettes won't look so BAD.

A good 6 point roll bar system can then tie the front frame, and both ends of the rear subframe all together. This will be optimum for handling.