I don't think that will be enuf. Since the later Vettes (C5 and C6) have a bunch of
electronics, they DEMAND a battery with a bunch of Cold Cranking Amps. The vast
majority of the infamous "Service Column Lock" errors are caused by weak (read "Reduced CCA ability")
batteries. Many more symptoms can crop up as well. Without the higher CCA the
voltage drops to unsatisfactory levels during cranking making who knows what errors appear.
Save yourself some headaches in the future and get a battery that meets or exceeds
GM's recommendation for CCA's. Just my 2 cents worth........I'm sure that someone else
(Junkie???) will have something to say on this issue as well.
Andy