Lots of cool info here on pumps for sure.
I run a bumped 887(215 pump) and it does quite well for what it is. I did come up with a junk yard 913 that Industrial just finished rebuilding, although it was dirt cheap when I got it ($50) but I had to spend allot of money on it..... it was quite a piece.
I had it built much like a dragon fly except non 191 DV's, when I get it here and on I'll give you some feed back on it.
If you limit a 215 to 17mm of rack like they say to a 855 pump will outflow it on the bench.
Brad, did you guys dyno a 215 with max rack travel and see any gain in HP?
Jim