I have just standard port trickflows & 2-1/8 tti headers.
Here is a photo of my mid plate after trimming for the headers. It is .090 steel from competition engineering also it was made for a centered driveline. I also had to trim the firewall up 2 inches from the original hump to clear my flex plate shield and had to cut the pinch weld at the lower part of firewall.
FYI the passenger side is cut even farther into the mid plate. I will be adding some extra metal to strengthen these areas. Also I made it that shape before I put it in and test fit so I messed it up a little
View attachment 1716230569
View attachment 1716230575