How will it perform?

Should run good.
I think the converter ( if it truly flashes 5800) will be an issue, cam is small but isn’t going to be an issue.
Mine is 350 pounds heavier and has a much shorter lift flat tappet, has been 10.40’s first time out with it in its current form.
Yours should run 10.0’s right out of the gate.
I am still not sold on those heads, if yours runs like it should, that will definitely change my mind.
Gonna say 10.50’s, good luck!!