'68 Chevelle 300 Deluxe 2-door Post, good starter material
 

This one has already been converted over to a 350 so you don't have to feel guilty about tearing up Grandma's original 6-cylinder. I think the ticket here is to quadruple the horsepower with a big-inch small-block, leave the paint and interior as-is, and go have some fun.

Link to 1968 Chevelle 300 Deluxe auction

https://i.ebayimg.com/images/g/33gAA...wC/s-l1600.jpg

https://i.ebayimg.com/images/g/LzIAA...yD/s-l1600.jpg

133278B190877