727 Small Block Torqueflite Convertor

ok,I checked and it is a non-lock up 727.The flex plate,im not too sure and I called a guy at my local AAMCO and told me the stock TC is 2500 RPM stall.The thing is too is he said the TC he has doesnt have weights on it.I thought they did since the 360s are externally balanced.I want to get this right the first time because I dont want to have to tear out the tranny again due to a wrong TC.Ill check on the flex plate.