Opinions needed...

[214Chevy]

Guys, I'm kind of in a indecisive situation here. Allow me to explain and y'all give me some insight and opinions. I'm in the process of getting ready to start on my 69 Camaro. The LS7 longblock is built and I'm about to put the supercharger onto it, install the Wegner accessories drive, etc. I have a Whipple 4.0 and it came with a cable driven throttle body as Whipple doesn't have a DBW throttle body for LS engines. The intake port on the Whipple is oval shaped and isn't designed for your standard, round Nick Williams, etc. So, in order for one to work I'd have to have a plate machined for it to fit. Here's where the decision process needs to be made. I'm ready to order my Holley Terminator Max or Max X. From my understanding, the Max is for cable driven only and Max X is for DBW and electronic transmissions, which I don't need since I'm running a T56 Magnum...but, it's $300 more. Will it be more beneficial to have DBW that warrants the $300 price different just for the sake of having drive-by-wire? Also keeping in mind the price of having to have an adapter plate machined, plus the price of having to buy a new DBW throttlebody? Or should I just keep the cable driven and roll with what I have. My car is strictly a street car and driver.