Where to buy a 727 transmission

The attachment on Woods 74 note is excellent. Just make sure if and when you order a custom converter you give whomever you chose all the information you have on your car. Don't guess on the HP, you either know exactly what it is or you don't. Any mis-information supplied to any high stall converter builder will end up with you having the wrong converter for your application.
Keep in mind, that just because a certain size converter works in one guys car, doesn't mean its the right one for yours.