OK, got the miss outof acceleration by installing new cop's and plugs in cylinder's 1&4 with a little info gaind from these forums others have posted previously. just been wondering if there is a head swap that can be done t help with problem and what would be the ones to go with. or will the heads off of 09 model fit the 5.4 from 04-08? just been thinking but dont know if this is possible or if it has been done. Any ideas?
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