[Don Palumbo]

A friends car will stall after a short boost when letting off gas. Will restart and run fine, until it spools up the will just shut off when foot is taken off gas.

 

[rastaz]

Couple things come to mind...

IAC needs to be cleaned and reset.

Did he just add a high stall smaller diameter torque convertor? If so his chip will have to be "adjusted" to compensate.