I stumbled across this site while looking for an overdrive crank pulley. The link will take you to a pulley calculator which is pretty nice but when you scroll down towards the bottom of the screen, you'll see that there are links to a host of other calculators as well. One of them will even give you fuel injector flow rates for a given fuel pressure.
Might be useful to some:
http://www.csgnetwork.com/pulleybeltcalc.html
Might be useful to some:
http://www.csgnetwork.com/pulleybeltcalc.html