Hey everyone I'm new here and new to owning a tractor, been around them my entire life but just now getting my own. I picked up a 54 (I believe) Cockshutt 30, we picked away at it as it was seized when we got it, managed to get the engine freed up had to rebuild the exhaust manifold as is was Swiss cheese and un-sieze one of the valves. Got it to fire up almost instantly oddly enough after replacing the wiring and putting on some plug wires off my parts Subaru Outback. It was running and going into gear but didn't seem overly powerful. Hooked it up to our hay rake and it would barely move, engine ran fine but it seemed like the power just wasn't transfering past the engine. Just took it to the end of our back lane and it ran ok then when I went to go back up the lane it wouldn't make it up the incline (about a 25 degree slope). When I let it idle down and just about die out it seems to start to catch gear but rev it up and nothing. I've worked on motorcycles, cars, and trucks but tractors are a new world to me especially with high/low, pto, and belt drive I'm at a loss as to what the issue could be any help would be appreciated.