oh yea, i have 155's in my car too. and its way rattley. thats the only way i could get my car running right. it was a dog when i had the timing so it didnt rattle much. but now it starts so nice.. i know my pump timing is so close, i t has to be to start and run as good as it does. how does your car start Ham? fires right up right when you touch the key? after the glows warm up of course. when i have my timing off, i have a hell of a time starting my car.