Hi Gents,
I hope this will help, or give you some ideas -
Here is some .12 rigger work I did back in 1994 or so.
I used an OS .12 CZR with 172 degrees of exhaust timing (155 was stock), 60% fuel, a MAC 2.5cc pipe and header, Octura 3" solid mount, Hughey hardware and a 1640 prop. It really...