No, i was saying the stock Isuzu box (not pump) doesn't have the best characteristcs for hydro assist conversion. When tapping/porting it, you can't get enough flow without some squirrly characteristics.

I used the stock isuzu box for some time with my 36's before going hydro assist. If i was planning hydro assist again, i'd forget the stock box and retrofit another box with better characteristics for hydro.

-Rob