ok guys, well I finally got my motor together and put in the car... its stock with a B cam and heasers and CAI nothing special. well atfirst it had a bad miss to it, 2 injector wires got crossed... well the miss got better but #7 still wasnt firing and its got new plugs and wires... well the guy who fixed it said the valve wasnt close so after he shimmed it and all it still wasnt firing. he said it was low on compression to and after he got it shimmed it still wasnt firing so we replaced the injector. it fixed the problem, but now u can hear it rattlin when i get on it at all and its still idleing a little high at about 1100... what would cause the valve not to be closing? and I'm thinking it didnt need to be shimmed it was just the injector all alone but he said he did a compresson check on it... what would make the valve not close with just a B cam? the pushrods are all stock and we even took em out side by side and there the same lenght... any ideals would be appreciated and the car just seems weak for some reason.... thanks guys !!