CrateCruncher,

American made engines include those from MECOA (K&B, HP, RJL/Kraft) and Jett engines are well made and powerful. Old stock (new or used) engines are not that hard to find, such as Webra Speeds, OS FSR and SF/RF, HB, HP, Moki/Mark, Super Tigre and YS. All good running reliable engines. Several developing their ample power with low nitro fuels.

Terry in LP