hello i have a 1993 dodge ram 250 with the cummins turbo diesel and i just got it from my uncle as a project truck and my dad and both uncles told me he lost a good amount of power after he swamped the truck and blew the head gasket..so he replaced the head gasket..but the truck has not nearly as close to much torque or power it had before....can someone please give me advice on how to get the power back or what may need to be done..i cranked the injector pump up and got some power but still dosent got the power it should....also i was putting the truck into my garage and tried it in D and it was almost to the floor then i dropped it into 2 and it still had to use half throttle...the motor has plenty of power it really twists but the tranny isent doing something correctly anyhelp would be great thanks.gregg