Vinny,probably 75-80 & try the corvette L82 engine application.
Before you put in a stock replacement i would call performance distributors & they will tell you their coil is a higher volt output than just a GM replacement coil.
Check out MSD also for their higher than stock voltage coil.
Sure the local aftermarket coils will work, but you may only have 40K volts instead of 50K volts. Bill