Originally posted by Swifster
Honestly, other than repairing what age has taken a toll on, I wouldn't touch it. Finding any 25 year old car that hasn't been molested is extremely hard. Is it the most wanted Corvette? Far from, but being in it's original condition is what will let that car hold it's value.

If someone else isn't happy with the power, let them buy the car from you so they can invest the money that will never be recouped when you go to sell the car. I'd see about joining the Corvette Club if you haven't already.
I agree, and that if a buyer would happen to notic the heads had been changed, he could walk away.

if the car is a numbers matching car then leave it alone . but that doesnt mean you cant do a good rebuild, just dont swap heads intake and such, you can open the cylinders a little to like .020 over, add new rings and bearings, maybe new cam, and get some work done on the original heads, like 3 angle valve job, maybe new valves ,guides and seals.
you would bring the hp up a little and still have a numbers matching car.