Need to know what shocks to use

[sbmjr1]

I have 1983 grand prix and I,m trying to figure out what shocks to use.I have qa1 12" 150 springs in rear. Was going to use qa1 shocks but can figure out which ones
to use. So if someone has an answer I would be very thankful.

 

[TRZ Motorsports]

DTC1661P are the QA-1 double adjustable bolt-in rear shocks
TC1661P are the QA-1 single adjutable bolt-in rear shocks

Obviously doubles are better, but also quite a bit more pricey. It depends on what you're trying to accomplish.