[silicon212]

Originally Posted by Aremy Griese

i have a 600 edlebrock on my 350 i get good gas milage and performance, im happy with that . this was the recommended carb for a 350 so i dont see how a 780 is gonna be better for a 305 a agree with bzr77 . im sure it will work fine on a 283 or a vbb but your not gonna have it matched very well, you will loose performance , maybe not much , but some, unless the engine is built to handle that size carb. i'd go with a 600

A misconception about the Qjet is the flow characteristics - granted, it will flow 780CFM on demand - but the air valve functions in a way that the engine is never over-carbed.

A properly tuned Qjet will provide the proper flow characteristics for a 305, 350, or a 454 - and it has the ability to breathe on the high end when called upon. Most other carbs can't do that. Another thing the Qjet has over other carbs on C3 or OBD cars is that you need not disable the computer to run it. The PROM on an ECM can be programmed in such a way as to deliver tailored advance curves and more accurate mixture control for any specific condition via the computer - you can't get that on a mechanical setup and it is this reason why I now prefer to run the OBD system as opposed to fully mechanical advance and mixture control. You can only do this with the E4ME Qjet - others need not apply.