Great responses, Guys - thanks for the info.
I will run the engine in and see what kind of power it makes.
I have a number of engine to try on the Shaper.
O&R 29, Orwick 29, Mohawk 29, Thermite 49, K&B 29 and a Bullet, all spark, all new.
They will be run on gasoline/castor/synthetic so I can use a relatively small tank - maybe 1 1/2 ounces.
My ignition system will be standard: three AAA cells, Z-coil, AC plug, points and condenser.
I'll report progress.
Suggestions always welcome.
Thanks again.
Bob Z.