Paul,you may want to look into adjusting the 02 adj in front of the fuel distributor when the car is hot, but I think you may now be looking at a warm up regulator. John Hervey www.specialTauto.com << So the problem is now when cold trying to give it beans when pulling away it coughs and farts until you press down the clutch and ease it back up. and gently gain speed.. It never did this before I switched the idle speed motor. I guess there's something that needs adjusting,but what? Cheers Paul >>