Thread: The Ford 4.6 was to much for the 5.7 HEMI N/A
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Old Apr 12, 2009 | 09:41 AM
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germansheperd
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I use Zmax in my engine to run those times. Carroll Shelby endorses it and he wouldnt say to use it if it didnt work!
Last edited by germansheperd; Apr 12, 2009 at 09:47 AM.
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