Small block 426 stroker with trickflow heads. How much HP.

I am building that combo right now.
I have a little less stall in my converter but have 4.56 gears.
It should be together next weekend and make some test runs at the end of the month or first week in April. My only issue/ holdback is my TTI 1 5/8 to 1 3/4 step headers. I don't want to cut the fender wells to get a bigger header so its what it is.
Who's kit did you use?