Thank you!
My car is a 71 Swinger and I have a 5.7 to put in it. When I saw your post and pictures I knew I would have the same problem.
I was up late looking around and found 5.7 and 6.4 Challenger intakes intakes on Rockauto and saw that they were VVT. A bit expensive for the 6.4 version. While searching I found two different people that had videos on retrofitting a 6.4 VVT intake onto a 5.7. They were wiring and soldering and using an MSD box to actuate the short runner longer runner function. I was not able to figure out if this was used on non VVT enginess.
My plan of the week is to use a Mopar wiring harness. I have been told it should work with the VVT function on my 5.7 and now I am hoping it can be used on a challenger 6.4 VVT intake. If not as long as it works on a 5.7 Challenger VVT intake I will be happy.