I would hold on the QA1’s I used to be a big believer in them but they have not stood the test of time. Viking coil overs are what a lot of pro touring f bodies have switched to...
DJP do you happen to have hotchkis springs installed? If you do, They are a great product but drop the front end on the birds a bit too low. If your looking to keep costs down, suggest looking at global west coil spring spacers. Custom fit right into lower pocket. Solve the “too low†issue for under $20 shipped. If your looking for a great spring I would suggest global west S-2’s if you have a 400 and S-41’s if you have alum heads, LS, etc. What tubular lowers do you have? You might be able to buy a 1/4 washer to go under spring for dirt cheep. Remember whatever you do at the spring is double in ride height. (1/4 spacer = 1/2 of lift)