HI folks,

I am going to be tearing my car down to install a big cam, Meth and a few other things. The engine is coming out and its the right time to work on the trans.
I think my trans has issues already. For starters it feels like i have a parking brake lightly dragging at low RPM. the car coasts fine and gets the correct MPG. It just feels like the trans isnt really engaging until about 1500 rpm or so.
It also has an issue where sometimes it sort of half shifts, and pulling the shifter down into second fixes it. It also has a pump whine like a PS pump . Eventually ill buy a Gearstar or built trans, but i need something serviceable for now.

I know the trans needs work, but my budget is limited, so i cant do a true full rebuild (bands, seals, solonoids, valve body etc) So id like to know what to focus on. I also need to strengthen the trans as with the Cam and meth, i should be pushing north of 350hp to the wheels.

1st question, do i rebuild the trans I have or get a JY one? (170 bucks from the JY)

2nd question what are the must do parts of a rebuild? I imagine ill need at least the 1-2 solenoid, and a basic rebuild kit (probably more)

3rd question, i know i need an input shaft, what are the other MUST do mods to handle the power? I dont launch my car, and i dont plan to, but i also want the trans to handle a WOT 3-2 or 2-1 downshift.