I have a 62 Meteor with a merc o matic. If I take off slow, the engine speeds up when shifting into 2nd. If I give it the gas or am going downhill slow, it shifts perfectly. Also if I'm going uphill slowly and let up on the gas, the engine speeds up when downshifting into 1st. Otherwise reverse is fine and it'll do 60 with no slipping or any noise, chattering, etc. I haven't had the pan off but the fluid is red and at the right level. Any tips are appreciated.