6G GT for LeMons! Options

[dunedin]

We are putting together a 94 GT coupe for 24 hour of LeMons racing (and probably Chump Car too). Our $500 car has 160k miles, a big oil leak, but not much else wrong.

Does anyone have any experiences or good ideas to make it go faster on the track? The twist is that $500 is the spending limit on the car, so anything we do has to be subtle and above all CHEAP.

So far, I have heard that the rear struts from a convertible are stiffer, and will help to keep the rear end in line. There is a pair on a car in a local junkyard. Is it worth swapping them out?

Also have heard that an ST anti-roll bar on the front is thinner so it will help traction in the corners and reduce understeer. True? Or should I just take it off? It will probably just come off if the track is wet.

Are there any standard (i.e. cheap) wheels off other cars that can give us wider rubber?

Any other ideas? Camber, tire pressures, engine ideas? Any inspiration appreciated!!