I had an 84, the crossfire is a lot of torque but no top end. It runs out of air at about 4800. I had the Z/51 HD suspension, it handled nicely but was pretty stiff riding. Compared to the two 72 vettes I'd had, I'd say the ride was much better than those earlier vettes. You still bounced over a bump, but it was a rubber cushioned bump on the 84, the 72 hitting a bump was a clunk! also interior noise was much lower on the 84.
The 700R4 was very weak on the early vettes, got several upgrades around 88 as I recall. Don't let the trans run low on oil, or it's gone, fast.
Later vettes got heavier duty differentials too. I think the manual trans cars recieved a Dana 44 diff around 86? Auto used a weaker diff.
Later models got better stuff all around, so if you just want to cruse, this one sounds good. If you want something to hop up, you are going to wind up breaking drivetrain parts, and having to upgrade them.
I'd consider post 88 vettes, bigger wheels, brakes, heavier drivetrain, better trans, roller cam.
Check my web page for First Gen Camaro suspension info:
David's Motorsports page
First Gen Suspension Page
67 RS 327 original owner. 69 Camaro Vintage Racer, 65 Lola T-70 Chev SB Can-Am Vintage Racer
[This message has been edited by davidpozzi (edited 06-06-2002).]