If your Z/28 is in original condition, no wrecks, clean throughout and less than 40,000 miles...you should be right around $15-$20K.
This will go up sharply in about 5-7 years and be paralell with the rise in equity of the average home rise across the country. Like all other collectible values...they are all relative to the increase of equity relative to the home values in our country.
The 1969 SS 396 Chevelle...numbers matching 4 spd went for about $15K back around 2002. Since that time, the owners saw an appreciation increase to near $55-$70K!
The Z/28 isn't as rare of a vehicle...but certainly can out corner all of those 1969 Chevelles-NO PROBLEM.
If you're into raw street power and have the opportunity to build one of these beauties...then get yourself a 400 c.i. small block and throw some '66-'68 2.02 Vette heads on it with a cam from Chevy for the 1970 1/2 LT-1. Now you're going to see some rpm's up around 6500 with a very strong power range that spans between 3000-6500. Enjoy. Oh yeah...the carbureator...well that's easy, get yourself a deburred and jetted quadrajet from a 1973 SD-455 Trans Am...as the secondary air valves open at 90 degrees and allow a full 725 cfm.
