I have a 90 Camaro have umi adjustable torque arm and panhard bars comp engineering rear shocks set at 30/70. The car just smokes the tires off is there any adjustment I can do with the umi setup to help

 

Yes you can adjust the pinion angle.

What is your current pinion angle?

 

to be honest I have no idea what the angle is right now

 

Get a pinion angle finder, get underneath the car and find out.

Then search to see what pinion angle you need for your hp level and driving needs

 

ok will do it is going to be a drag car. think I will get the LCAR brackets also see if that helps any

 

What rear tires at what pressure? The relocation brackets should help if you have good control arms.

 

What kind of tires?

What kind of engine and what mods are done to it?

Is it spinning on the street or on a well prepped track?

 

oops!

 

it is spinning on the street had cooper cobras on it now have 28x10 slicks. It has umi adjustable control arms on it. Engine is a 350cid dart pro one alum heads light weight crank and pistons 520 lift cam and 175 shot of nitrous. 3500 stall converter

 

It says smokes the tires off,I'm taking it that's both tires with a posi/locker of some sort.
As far as the Cooper Cobras are concerned there made out of a hard compound rated at 50,000 mile tread life and are going to spin especially with that converter/etc. With that engine and a shot of nitrous with that stall your only going to be able to hook at a well prepared track even with your suspension mods. and slicks.