Re: XE weber carburettor
The webber carby is a far superior product to the holley in this instance, it does have a few minor problems though. At the front of the webber there are two mixture enrichment circuits which can cause a problem after a while, both are vacuum activated and rely on a rubber diaphragm, if the diaphragm perishes over time the enrichment circuit is permanently activated making the car sluggish off the mark once it has warmed up. In my opinion neither of these circuits are required and I have disabled them both in all of my falcons (2 XE's and 3 XF's) One circuit enrichens the mixture when the water jacket temperature is under 76 Deg C (From memory) the other is the "power valve" which enriches the mixture when the manifold vacuum falls below a certain level. On all of my falcons I have also disabled the accelerator enrichment circuit by removing the cam from the throttle shaft, this has had no effect on driveability but has improved economy in each case.
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