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914World.com _ The Paddock _ Initial Setup of Dual Weber 40 IDFs

Posted by: stugray Dec 20 2011, 01:23 PM

I am building a mostly stock 2.0L with the Raby race cam and dual webers.

I bought the Italian webers used and have done a complete rebuild & getting ready to put them back together.

All of the parts (idle jets, main jets, emulsion tubes, venturis, etc.) are stock - what comes with the IDFs.

Can I get a feel for what everyone considers a race setup for these carbs?
I will be racing mostly at ~5000 feet altitude @ High Plains Raceway in CO.

Any hints for initial setup would be appreciated.
I want to buy a "jet kit" that brackets all I might need to use.

Stu

Posted by: Joe Ricard Dec 24 2011, 06:39 AM

idles 50 and 55
Mains 130 to 150
That out to do it. Read the plugs and let er rip.