Does anybody know where I can buy a CPI unit and nut kit for a decent price? I have a 1994 GMC Jimmy 4.3 vortec, VIN W. Thanks!

Ebay. I got mine for half my local dealer price by buying from a cadillac dealership in Chicago that runs an ebay store.

Rockauto, GM Parts Direct, Advance Auto, Autozone, NAPA and the dealership are all places to go find them. I will help you with the part numbers to help your search go smoother:

CPI Injector/regulator kit: AC/Delco part # 17113673
Nut Kit: AC/Delco Part # 17112705

I lucked out and found a parts wholesaler warehouse loclly, and they cut me a super deal on the parts, $377.85 + tax. Figure in another $5-$13 for the upper plenum gasket, and $4 for a can of throttle body cleaner to mop up the mess inside the plenum when you take it apart.

Check out E-Bay $51.95. Here a link.
http://cgi.ebay.com/OEM-4-3W-Injector-Nut-Kit-fuel-feed-return-pipes_W0QQitemZ8016786758QQcategoryZ33553QQssPageN ameZWDVWQQrdZ1QQcmdZViewItem

If you buy it all in a kit you'll get the gaskets, o rings, CPI, and nut kit (which is basically everything you'll need). I got my "kit" for $400CDN

This guy (http://cgi.ebay.com/ebaymotors/4-3-FUEL-INJECTOR-SPIDER-S10-BLAZER-SONOMA-PROKIT-1088_W0QQitemZ8015769166QQcategoryZ33554QQssPageNa meZWDVWQQrdZ1QQcmdZViewItem) is selling the parts at GM wholesale prices. It contains all the necessary parts to complete the job. It is a GM dealer and you get a dealership reciept should you need to get any of the parts replaced locally at any GM dealership.

Ebay. I got mine for half my local dealer price by buying from a cadillac dealership in Chicago that runs an ebay store.

This is probably the way to go, if they are all GM parts.

Shoot even if they aren't it's still a good savings from a stealership

The guy I pointed out in my previous post is from Ebay, and his parts are al AC Delco parts.

i got mine from gmpartszone.com. cpi was 295 and nut kit was 53. shipped in about 1 1/2 - 2 weeks. comes with o-rings, retaning plate, torx bolt, and clip. u will also need to change the upper intake gasket which is about 11.50 at advanced auto parts. the new injector units and nut kits are suppose to last 5-7 years instead of the factory 4.

The link 93LT posted is the dude I bought my kit from. Nice post.

93LT is on to something there... good find man