[andy669]

I made the spacers out of a sheet of 3/8" plastic. I took a hole saw and drilled out the I.D. then cut the O.D with a bandsaw. I made 1 for the lower perch and 2 for the upper. The only time I needed them was when I had all the ballast in the car. With no ballast the rear sat where I wanted it with the stock V-8 springs. If the money is in the budget, I'd recommend coil overs in the rear. Ride height adjustments are pretty simple with them. There also may come a time where you want to ditch the air bag and install an anti-roll bar.

You should be able to fit a 28x10 under there, but you might need to do a few things. 1) Get a wheel with the proper backspace. 2) Massage the inner wheelwells with a big hammer. 3) Trim the lip off of the outer wheelwell opening.

I wouldnt worry about the shift light at the end of the track. A general rule of thumb is to run through the lights about 10% above peak power. My engine peaked at 7200, I shifted at 7600, and I went through the lights about 8000.

Hope this helps.

Andy