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review

Holley Truck Avenger Carburetor Review

For years offroaders needed to modify Holley carburetors to get them to work properly off road.  The configuration of the fuel bowl vents made them flood the engine on inclines easily.  By placing a tube from on end of the bowl vents that connected the front to the back the flooding problem could be reduced.  Also, the needle and seats needed springs to control fuel flow over bouncy terrain.


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Holley finally got the message and developed a carb that seems to fit the bill for us Jeepers.  We tested one of these on Mike's 77 CJ-7 with excellent results.  The Jeep was subjected to inclines, declines, bumps and off camber angles with no problems.  The electric choke worked well and starting was smooth and easy.  The carb's performance on the 360 was what one would expect from a Holley 4BBL.  We are pleased that Holley took the time to provide us with a carb that is friendly off road and a true performer.

Some Holley Technical Info

Holley Truck Avenger Models

Part Number Name
0-90470
0-90470 470 CFM Four Barrel Carburetor
470 CFM Four Barrel Carburetor
Model 4150; Vacuum Secondary; Electric Choke; Dichromate Finish; Designed specifically for Off–Road Use. 
0-90670
0-90670 670 CFM Four Barrel Carburetor
670 CFM Four Barrel Carburetor
Model 4150; Vacuum Secondary; Electric Choke; Dichromate Finish; Designed specifically for Off–Road Use. 
0-90770
0-90770 770 CFM Four Barrel Carburetor
770 CFM Four Barrel Carburetor
Model 4150; Vacuum Secondary; Electric Choke; Dichromate Finish; Designed specifically for Off–Road Use. 

 

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