Anybody have good experience with an IAC replacement, I cant source the original Mopar
and the old one is lost, I tried a BWD one that wasn't very good.

Any brands recommended ?

1994 DOdge ram b350

 

Look up the Mopar part number, and do a google search on that. You can usually find 'em on amazon for a reasonable price.

So far, I haven't found an aftermarket part that actually works properly..... Worst case, see if Standard Motor Products makes one.