spark plugs and wires on 1995 Chevrolet Corvette

what should a decent tune up kit cost? plugs,wires,distributor cap,roter and PCV valve

Asked by for the 1995 Chevrolet Corvette
Take a look at the maintenance schedules and estimates on RepairPal:

This should give you an idea--you're looking for the major service--it's probably the 60k or 90k.