The NX Maximizer is basiclly the same thing as the Venom controller, just a different approach and minus the a/f monitoring, and it cost about $500. (There are cheaper options at Summit)
If you're going to buy another controller, might as well sell the Venom kit and buy a basic n20 kit.
You'll end up with money in your pocket.

Frank McCoy aka Mod-deth aka Mid Life Crisis aka SVT Doood aka mcgainer is a SCAM ARTIST Pre98 Zetec - Some Mods