That was like mine from S&W was for a center set up,so had to trim a lot off on the passenger side to get it to fit then cut out for the exhaust. Course found out about the center when installing the engine, at least you were smart to use just a block lol wish I did that first instead of what I did. Had to name a spacer to weld to the frame to weld the mount tabs too on the second pic.
They oughta tell people that their products are for non offset applications or send a little chunk of steel to make either way...it makes me have to ask more questions about other stuff that I need to buy since it's not a straight forward build.
I'm glad I have a lot of extra spare and garbage blocks and transmissions, the one in my car right now is just the case. It's much easier to wrestle around 40 pounds vs 100 plus.
Which headers are you going to run ?
I have a low deck and just got my 2.1875 primary tti (polished ceramic) and really don't want to have the in and out a million times, guess I just wonder how much I need to trim on the lower side to clear the mid plate. Your install looks good!!!