I'm not real familiar with the spool type K frames but looking at pictures, it appears that the saddles are straight up and down..maybe level-ish? I wonder if in a previous life, that maybe the car received a jolt and caused them to shift a little. or perhaps the slots are worn, little the engine to sit just a touch lower. would it help if the engine was a little higher in the saddle? Giddy-up! I'd be really tempted to just pie cut something..small pie.. and just shift a little.