I have a late 70's model mustang 1700 with torque converter and ford gas engine. Just picked up a front log splitter, 30 ton. with a 4 way wedge. Wondering how many gallons per minute this unit pushes out the hydraulic pump. Seems to have issues with large logs unless I start way at the top with the 4 way wedge. once it starts it does not stop, just seems to stop when wedge is in the middle of log. Any ideas?