Will a two step help me out with better 60fts with a th400 and Trans brake or shall I just keep footbraking it.

 

All the 2 step will allow you to do select a launch rpm at wot. I wouldn't say it would or would t help. It's deffinently a great tool to have in gettin the car to leave hard and consistant. If its not a financial issue, go ahead and install one

 

Which one is the best one

 

The lingenfelters is simple to use and works very well. I use a synergy performance unit. It's awesome and expandable as to what it can do... But it's a PITA to hook up

 

This^^.....my experience = two step for consistancy or push button, put it up on the converter(w/no two step) for best 60'.