Thread: Weber 500 on Stage 1 Problems

Originally Posted by Dundee

Thanks for this. I will look further into it. Thanks for taking the time to walk me though this. Much appreciated. One of the items on part range is
the Corrective Carb. Needles/Jets for Webber 500/600 Carburettor on 3.5 engines. It says:
The Weber Edelbrock 500 (1404) is not a jet fussy carb. type (unlike the Holly) but we are offering the appropriate jets here for most standard and and larger capacity upgraded V8 engines.
Sounds like this might be just what you are referring to and what I am looking for?

Yes, See my above posts. Also you may need to look at how much fuel the accelerator pump is pumping and reduce that if you can.

Originally Posted by 400HPONGAS

Exactly what amtravici says , you going to need a Calibration Kit
(Calibration Kit for #1403, #1404, #1801, #1802, #1803, #1804)..........Part# 1486
You need to find out what rods,jets and springs you allready have as your proably going to have to come down in size a fair bit , because the Kits invariably are for jetting up not down .

Still Love to know what a standard 500 Weber is supposed to be !!!!!
How about a triple barrel 55MM DCOE (Last of the Porsche webers )

The Weber 500 is pretty much a Carter AFB. 4 barrel downdraft.

Okay ,yeah dont use mush carter AFB plastic carbs,dont do Frauds,LOL(Rochester quaddys are much more fun !!!LOL)
But I did use weber metering blocks on 750DP Holley ,beats trimming the Bleeds .
These Edelbrocks only have different size nozzles , so no diaphragm or cam like a Holley
(for accelerator pump adjustment that is but it still has a plunger and seal !!)