Understand, all good.
I was looking for a particular look as well as functionality.
USCT fit the bill for me.
I've got a ton of patience so no big deal with taking more time to fit them tight to the floor pan. These connectors are heavy and very well built. Without them . jacking the car up towards the front or rear resulted in the doors not opening and closing properly. That disappeared after I installed them. I'm betting its the same with any frame connector. Torque boxes are a must and, USCT makes a very strong lower rad support that also helps rigidity.
BTW.. do you have any posts on here with your MPFI ??
Now that sounds interesting!!
Cheers!!