Ouverson quoted me a spool for a 14 bolt for stock Rockwell 16 spline shafts last year. I can't remember the price but it was too high $300-500 if my memory is correct. :dblthumb:
For the $60 or so that it cost to have them done it seems like it would be worth a try for me until you get the 14 bolt done. Or just throw another set of gears in it and hope they don't break the first time you step on the gas. :popcorn:
I have run this Cam http://www.lunatipower.com/Product.aspx?id=1982&gid=287 with double hump heads and flat top piston in a SBC and a single propane mixer. strong little motor. :eat: