Okay this PU was running fine until putting a tankof premium in the other day since then it began to stall.. replaced plug wires. ari filter fuel filter cap and rotors. still stalls when trying to excelerate... replaced fuel pump added low voltage electric fuel pump.. 2.5-4.5 pressure... still stalls when trying to excelerate the tank has been blown out clean and all lines.. still stalls when trying to excelerate.. beginning to get frustrated with this one. even emptied thefuel out thinking it was fouled somehow, and bought more premium still stalls when excelerating... replaced most of the fuel lines with rubber hose thinking maybe rusty lines?? still stalling with exceleration... ANYONE Else here run into this or have any suggestions.. I know it has to be something stupid.. running out of ideas.. even cleaned the carburator out still stalls on exceleration... every general thing has been done on this to remedy the issue but still seems to BITE THE DUST when you try to drive her... idles fine for the most part... even goes in reverse.. but try getting this b-- to go forward is utterly impossible... open to new thinking on this line...... please anyone... almost seems like a stubborn mule that you can't get to move... LOL HELP anyone???!!!!