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In the very recent past I had mentioned how Holley's Street Avenger carburetors are constantly bashed in other forums but I have never understood why. My 770 cfm Street Avenger has worked perfectly ever since I installed it three years ago. Here's what a carburetor "Geru" in another forum just said about them:
The SA carbs are horrible, cheap carbs and every one out of the box is defective in one way or another. They have terrible metering blocks and Holley forgot to assign a quality control inspector to any part of their manufacturing process. The most common issue is that the accelerator pump arms are bent at the wrong angle & geometry and they do not make proper contact with the pump cam. The throttle will rotate but the accelerator pump arm won't move so there is no initial pump shot upon initial throttle opening. Changing the discharge nozzle won't help - check, verify and correct your pump arm linkage and geometry so the carb produces an instant pump shot discharge upon the slightest movement of the throttle.
When I received my Holley 770 Street Avenger I took it completely apart and compared every one of its parts to those of my old 750 cfm #3310. Every part was identical in every way which indicated they were made in the same dies, by the same machines, and to the same specifications. The main body now has the name HOLLEY cast into it but is otherwise identical. The fuel bowls now have sight glasses but are otherwise identical. The floats are identical. The base plate now has a power valve blow-out protection circuit. The throttle arm is identical except the fast idle solenoid tab has been raised 1/2" to lessen the load on the solenoid. The metering blocks are identical, the pump arm is identical, the boosters are identical, and the choke mechanism is identical. So it sounds like some people just hate some models of Holleys.
Every Holley is thoroughly tested before it leaves the factory so I don't understand why some "Geru's" claim they're cheap junk. Perhaps they don't know as much about carburetors than they think they know?
The SA carbs are horrible, cheap carbs and every one out of the box is defective in one way or another. They have terrible metering blocks and Holley forgot to assign a quality control inspector to any part of their manufacturing process. The most common issue is that the accelerator pump arms are bent at the wrong angle & geometry and they do not make proper contact with the pump cam. The throttle will rotate but the accelerator pump arm won't move so there is no initial pump shot upon initial throttle opening. Changing the discharge nozzle won't help - check, verify and correct your pump arm linkage and geometry so the carb produces an instant pump shot discharge upon the slightest movement of the throttle.
When I received my Holley 770 Street Avenger I took it completely apart and compared every one of its parts to those of my old 750 cfm #3310. Every part was identical in every way which indicated they were made in the same dies, by the same machines, and to the same specifications. The main body now has the name HOLLEY cast into it but is otherwise identical. The fuel bowls now have sight glasses but are otherwise identical. The floats are identical. The base plate now has a power valve blow-out protection circuit. The throttle arm is identical except the fast idle solenoid tab has been raised 1/2" to lessen the load on the solenoid. The metering blocks are identical, the pump arm is identical, the boosters are identical, and the choke mechanism is identical. So it sounds like some people just hate some models of Holleys.
Every Holley is thoroughly tested before it leaves the factory so I don't understand why some "Geru's" claim they're cheap junk. Perhaps they don't know as much about carburetors than they think they know?
