[Mrmerlin]

Just wanted to see if anyone has had similar experiences, my car 86 951 has a Kn N cone filter on it and after i put it on the car it seems to give some jumpiness (surging)during slow speed driving,this is very intermittant I am thinking that it may have something to do with it taking the heat off the radiator, I know I have a intercooler but it was definitly running better when it was cold altho i did experience the same kind of surge while it was cooler out it has been 90 deg and the car is at 4500 above sea level, so with the heat it makes it think that it even higher also i find that if i go up the mountain to about 7500 ft level the car will almost die unless I hold my foot on the gas, the Idle gets real low about 400to 500 RPM, this is after i stop, it runs fine otherwise, as long as I am on the gas ......
The surging and the Idle cut out are 2 different problems..... any Ideas............Stan