I would NOT use Super Stock springs, they weigh a TON.....

save your money and buy the Calvert springs they are nice and light...

a Caltrac set up with the Caltrac Mono springs are prob LIGHTER than just the Super Stock spring...way better

ALSO what are your goals with this car??? Super Stock spring and a good rear shock ...i have been in the 9's with that alone. Caltracs though can be a lot lighter, a lot lower sitting, and can handle a LOT more power down the road if thats your plan....and also better re-sale value later on. BUT if you are budget racing right now...nothing wrong with what you have