Any small tips to help ET?

Get the higher-stall converter and you are sure to be in the 13's. You can tell by your ungodly slow 60' ft E.T.s that the car is not launching worth a damn. get the better converter, stall that baby up, and hang on. For comparison, my slant six Dart runs 2.6 second 60' (17 second quarter)...Their should be a bigger gap between a slant six and a 360 IMO.