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Old 02-27-2008, 10:53 AM
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G.R. G.R. is offline
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Join Date: Jul 2001
Location: Evans, CO
Cobra Make, Engine: NAF 289 FIA, 347 stroker with Weber 48's, building a '48 Anglia gasser, driving a '55 Chevy resto-rod
Posts: 3,119
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1. Yes after changing to a hotter plug and re-curving the MSD distributor
2. Not after getting everything set right
3. Only difference is the engine idled a bit more roughly @32*F on start up once warm no problems.
4. No
5. A radical cam will make it harder to initaly tune Webers
6. Edlebrock 650 and mid-rise manifold and previously a Holley
7. Performance and acceleration w/Webers was fantastic compared to the 4bbls.

767 Jockey--Contact Redline Weber, Inglese and Pierce, talk to the tech dept and ask for their tuning manuals they all sent me one for no charge, also on all their websites they have some technical info not in the manuals. Check the CC archives about tuning Webers, good info from other guys here running them. Also a good source of info is if you can talk to an exotic car mechanic that tunes such cars as older Ferraii's,Prches and Lambos. Also ask around at your local speed shops if there might be shop or mechanic that knows Weber induction--I found a couple of guys that were a wealth of knowledge and shared some tuning tricks--
Once I got the Webers set properly I never had to touch them again until I moved to Colorado from sea level after retuning them for this altitude I never touched them again until I sold the car. An air/fuel meter would be a good investment though I never bought one. Also invest in various jets, venturies, etc. before starting your tune so you have them on hand rather than having to order them--not something you can get readily from your local auto/speed shop.
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