I know of two guys building them at the present time. One is going to be a winter car, and the other ripss up the streets by this race strip near pete's tavern in a little town in western PA. If you want i can give you their contact information so you can talk to them about it.
the new and slightly improved...don't piss me off, and i won't f#*k with you!!! *gggrrrr*
they suck j/k watch which rods you use. some hit the bottom of the cylinder and sqiurters, some hit the main cap bridges. i had 1 set hit elsewhere in the block by the balance shaft (manley i think). it depends on the design of the rod. (beam and rod cap thickness) you'll have to assemble, find where they hit and remove material from the block. my 2 cents from experience.