Shift Kit

Grinding the throttle valve stem is actually pretty easy. Just be careful you don't burn yourself as it'll get hot pretty quick. And if anything don't quite take as much off as it says. I've found it's better to be a little too long than too short cause if it's too short it may not want to kick down into passing gear good. As for the hole sizes I shoot for middle of the road of what they say. Only time I vary is if it's for a more race oriented trans I go larger or if the customer tells me they want a milder shift I go smaller. There's really not a huge difference in how it performs from smallest to largest anyway and since you can't make a hole smaller after you've drilled it be conservative.

If you don't have the reusable gasket before you put it together I'd use the cork gasket. Just make sure your pan is really flat. Lay it down on a bench and use a ball peen hammer to tap the holes back outward and run a flat file over the bottom of the case to make sure there aren't any burrs or high spots and clean it real good.