Hell I was wondering if any one has switched to a internal 1 wire altenator in their chevelle.Is this a major switch or is it easy to do.Any info or sites you can direct me to on this subject would be appreciated..thanks

Search the electrical forum. Lots of great info on this very subject.

here are some links and I would go to a 3 wire setup and not a 1 wire.
I went with a 3 wire and I am very happy.
http://www.geocities.com/diels12000/Alternator.html
well that is the only one I found right now. just do a search. Keep reading and you will see why you should go with a 3 wire and not a 1 wire.:thumbsup:

It dosn't get any easier than a 1 wire.

I bought new engine and forwad lamp harnesses for my 69 from M&H Electric Fabricators, at www.wiringharness.com . You can order the harnesses modified for internally regulated alternator, HEI ignition, and/or electric choke. It's really a top quality product and I couldn't be happier with it.

Any info or sites you can direct me to on this subject would be appreciated..thanks
Go 3 wire all the way, see reasons here
http://www.madelectrical.com/electricaltech/onewire-threewire.shtml
To change from a externally regulated charging system to a internal one, see pic

http://www.chevelles.com/showroom/data/500/alternator_wiring_pic2.JPG

Most single wire alternators have 2 terminals under a cap that can be accessed to allow towards using a 3 wire configuration. So a single wire would be just fine if you need that sort of thing.