Which aircraft are we discussing? A 205 is not a UH-1H the tail rotor's are on different sides.
A 205A has a Lycoming T53-11 engine and a 205A-1 has the T53-13 which is much more powerful. The 205's have servos that often leak and can drain the hydraulic system.
A 205 with 212 servos and tail rotor is the ticket I think it's a 205B or Huey II but I stand to be corrected.