right now if i start it up when its cold it will bolt up to 2000 rpm then slowly go down to normal running but it takes 3-5 minutes also if i move the car with it still high in rpm's it will just keep going from 2000 to 1500 rpm and keep moving between the two just rising then dropping rapidly. also if i start the engine while its hot it might take me 3 or 4 times to start it will start and raise rpms to about 2000 and drop and bog out if there are any suggestions it would be appreciated everything is stock on the car