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jaws09
06-27-2009, 11:06 PM
anyone have numbers or "seat of pants" insight on TBS for a 4.7???
jaws09
07-18-2009, 07:03 PM
seriously..no one?
jwhiteh
07-18-2009, 07:29 PM
i have a tbs on my 5.9l v8. love it.
jwhiteh
07-18-2009, 11:26 PM
i got the helix bore from air raid. i could feel a difference immediately. i also put in e3 Diamond Fire plugs. i used to get 11mpg city. now i'm consistantly getting 13-14 city. up to 20hwy +power!