Would this converter allow me room to grow?

I am currently looking at an FLP Level 4 trans and a Yank converter. I used the yank application guide for my setup (Hotcam, Heads, Nitrous) and it recomends a PY3600E with 2.3STR. Will this converter allow me any room to grow if I move to a larger nitrous cam? The next size up is a SS4000 and think that might be on the large size. The next size down is a PY3400E, it has a higher STR at 2.6 (any benefit?).

I've heard yank is the best performer, but does anyone recomend any similar converters? What have you found to work best with your application if similar? Stall, Etc?

-Sean