390 carb?
Senior User
Joined: Jan 2006
Posts: 434
Likes: 0
From: Little Falls,New York
Well, I don't count on any real mileage,just want to know how to get it to pack a little more punch. I am at anywhere from 300 - 500 ft above sea level, don't know what jet size I have.
Elder User
Joined: Nov 2003
Posts: 778
Likes: 2
From: southeast Idaho
Once you get the eddie set it should run okay for you , the last one I had the throttle shafts were loose enough I took it off after just 3 years though. If thats a new holley you should just take it back where you got it and exchange it. Either get a new 670 or a maybe 570 or 600 would be a bit better match for fuel economy and power. I know a 600 is more responsive on the bottom end on my 460 and up till 4500 or so it pulled as well as any of the bigger carbs I have put on it
Tuned
Joined: Feb 2009
Posts: 370
Likes: 0
From: Near Nashille, TN
Regarding the flaking inside the bowls... you probably have a defective carb!!! Holley had trouble with the zinc coating on Avenger carbs awhile back. I knew a guy with the same problem and Holley replaced it with no charge.
You should check it out... might save you a bunch of money. Below are a couple of links regarding the problem.
Holley Street Avenger, check your float bowls.
Inside of bowls on Holley Carb corroing and flaking...!!!?
You should check it out... might save you a bunch of money. Below are a couple of links regarding the problem.
Holley Street Avenger, check your float bowls.
Inside of bowls on Holley Carb corroing and flaking...!!!?
Thread Starter
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Freshman User
Joined: Mar 2010
Posts: 32
Likes: 0
Regarding the flaking inside the bowls... you probably have a defective carb!!! Holley had trouble with the zinc coating on Avenger carbs awhile back. I knew a guy with the same problem and Holley replaced it with no charge.
You should check it out... might save you a bunch of money. Below are a couple of links regarding the problem.
Holley Street Avenger, check your float bowls.
Inside of bowls on Holley Carb corroing and flaking...!!!?
You should check it out... might save you a bunch of money. Below are a couple of links regarding the problem.
Holley Street Avenger, check your float bowls.
Inside of bowls on Holley Carb corroing and flaking...!!!?
Hey thanks bud,
Ill have to give them a call and see whats up!
