Look up information and build threads on the Bonanza. The airframe is very similar to the T-34.

Again, you were told correctly. The airplane was designed with glow in mind because there were no gasoline engines available at the time. There is no provision in the design for the higher level of vibration normally associated with gasoline engine operation.

When built as intended within the weight specifications, an engine within the specified size range will fly the airplane quite capably.