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cableguy0 · 02-26-2011, 02:05 AM

Going to a larger cfm carb has nothing to do with the amount of fuel an engine gets. A demon is nothing but a glorified holley. I have never seen one that actually runs right. If i were you I would send the demon back and tune the holley you have. Its likely going up a couple jet sizes in the back will fix your issue on the top end. Theres a bunch of things that could be causing your problem. Throwing a bigger carb at it probably isnt going to help much. It might mask your problem but low end performance will suffer from the carb being too big for the application.

02-26-2011, 02:05 AM	#4
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,948	Re: Demon VS Holley Going to a larger cfm carb has nothing to do with the amount of fuel an engine gets. A demon is nothing but a glorified holley. I have never seen one that actually runs right. If i were you I would send the demon back and tune the holley you have. Its likely going up a couple jet sizes in the back will fix your issue on the top end. Theres a bunch of things that could be causing your problem. Throwing a bigger carb at it probably isnt going to help much. It might mask your problem but low end performance will suffer from the carb being too big for the application. __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.