I don't think it is mandatory...I know I read a thread somewhere stating how to get it done without any transmission changes I just cannot find it again.

Found this while searching for the thread....

Hacked up a perfectly good harness this afternoon...and I don't even feel bad about it, it's for a good cause.
Have everything I need to re-pin & modify my harness waiting now. Got tracking# from...

The '94 LT1 EGR valve is vacuum operated, via an electronically controlled vacuum solenoid. I may retrofit the later LM7 style EGR just to cover my butt?
In CA the year of engine dictates the...

Well, 'bit the bullet and ordered an EFIConnection LT1 24x kit today.
Banking on being able to get a cheap '96-'97 cover and hub from the JY. Going to head down probably Friday, and hopefully one...

Well there are now 2 '96 b-bodies @ a yard 60 miles from me.Figures...no time to go now. With any luck maybe I can still score a cover after Christmas?

Unfortunately I'm a cheapass, with a matching budget LOL.
Even if I could/did find a cover @ a price I was okay with, the machining of the hub would still also add to the total cost.

Machine...

Anybody heard anything about this outfit?

http://www.torqhead.com/buy-24xlink-products.html#!/Mechanical-24x-1x-Signal-Kits/c/13970125/offset=0&sort=normal

Better price than EFI Connection for...