The short answer is yes. You can definitely get it to perform and feel like a new car.
The biggest factor you will not get out of a classic, is noise.
GM spends tons of $ on development all around... but noise is always one they're chasing. Aerodynamics plays a big part, but so does the placement of seals, underbody panels, etc.
Wind noise and general rattles and such will be nearly impossible to get rid of to a level of a new car.
You can definitely get it tolerable. Just needed to put that out there!
(Also just read Vegas69 said a similar point).
So, go for it!
