Main jets are available from many locations as they are same type as the earlier 750s.
http://www.crc2onlinecatalog.com/Has them for a decent price. . . .
Why do you want a larger pilot? In my experience the stock #35 pilot works well even with intake/exhaust mods and or big bore engines. Typically the problem is that the pressed in jets and their passages aren't really clear. . . .
Sirius Inc sells a #35 pressed in pilot and they might sell a larger size. Not sure what their website is but perhaps some else here can help you with that.
