Do the Countach's have additional air valves like the Diablo's for cold starts? if they do, you can check the air valves to by pinching the 3/4" to 1" diameter hose, with the engine running right after you start it, one on each side above the valve covers, if you pinch the hose and the car idles down, the valves are not closing, check your fuse box, there is also a fuse for these.