I see my name mentioned here and I'd like to invite anyone that has a Demon Tuning problem to give me a call and we'll see if we can determine the problem and correct it for you...we tune these carbs every day and have no problems that can't be easily resolved.
You can visit the tech section of my web site and click on the Demon 101 article.
www.4secondsflat.com
Email me at
bigdaddy@4secondsflat.com
or call the shop 7am to 7pm monday - friday. 503-627-0728
If you purchased a Speed or Mighty Demon this year you probably have the Idle Eze valve installed from the factory.
BG has no tuning instructions yet for this feature......I do :-)
I'd be happy to send them to anyone who wants a copy of my step by step tuning preceedure on carbs with this feature.
The only problems we really see with these carbs are "Sellers" errors, wrong type or size for the application.
If your considering a Demon Carb call a reputable dealer who tunes these things and can help you out with the correct series and size for your application.