[dnowak]

If the car has been sitting for a day...it starts right up. It will idle perfectly for about two minutes...then it dies. You can restart it...but usually with some difficulty...but it will always eventually start. You can drive the car...it runs fine...except for the fact that if you put the clutch in and brake...the car will die. Bottom line...the car dies when you let off of the gas...will not idle on its own...you must heel & toe while under braking. Where do I start looking for the problem here?

Modifications to car: Stainless steel headers and exhaust (no catalytic converter) sport cams, 8:1 pistons and cylinders, crank fired ignition (recently installed three new coils)...1.0 bar...(79,000 total miles).