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Holley Avenger EFI

  
Mopar Muscle
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Holley Avenger EFI

 
bj954 bj954
New User | Posts: 7 | Joined: 04/13
Posted: 04/05/13
06:39 PM

anyone w info on gas mileage improvement or HP gains w adding Holley Avenger EFI to '67  440
Right now its about 350 hp and 8 mpg in my 79 Ramcharger 4x4