What makes a 1991 Pontiac Grand Am stall when you step on the gas and the majority of the fuel system has been changed?
Alot or a little, start with the basics, get outside the
box...imagine it's someone elses car, and you've just been told it
stalls...where would you begin? in other words, don't assume it
CAN'T be something just because you FIXED it already...could be
simple, could be not....good luck:)