I'm not telling you to build a Mustang - what you build is your choice. If you were to, I agree that a coupe with an LSX is not bad - cheap way to make good power, lots of options. You also could easily do a 351 in it.
I'm not the king, never claimed to be. You are the one that talks down to others on the site and mention about how fast you are, and ready to race, but then you turn and try to set up races with other people's cars and not run your own. What's up with that? No confidence in your setup?
If you are happy with your car's performance, then definitely don't change anything. I fully understand that and agree with it. I will not fault you for that, no matter what. I'm serious about that. The only person that has to be happy your car is you, and you are right to disregard anything I say concerning it, if it makes you happy.
I don't know what grand opening you are referring to, but I don't need anyone to pay for dyno time. My car has already been on the dyno, and I have free access to a couple of different dynos anytime that I like already.
Honestly, we could run, but we both know that my POS full-weight, DD would drag your competition engineered, reduced weight, weekend race car.