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john bertges 08-07-2011 01:07 PM
1971 chevy 250 carb
 
hi anyone know the cfm of a chevy 250 monojet it is on a 1971 nova

Dragsinger 08-07-2011 01:21 PM
Re: 1971 chevy 250 carb
 
Danny Ashley might know. He has many years of Rochester experience and industry contacts. Do a search for "Danny Ashley" I "think" you will find a post or two with his phone number.

john bertges 08-07-2011 01:28 PM
Re: 1971 chevy 250 carb
 
thanks

Dennis P Chapman 08-07-2011 01:58 PM
Re: 1971 chevy 250 carb
 
Billy Nees will know also when he see this he will answer you.

greg fulk 08-07-2011 02:08 PM
Re: 1971 chevy 250 carb
 
175 cfm wait it may be 150....it's one or the other

gcasey 08-07-2011 02:37 PM
Re: 1971 chevy 250 carb
 
Small Monojet on 230/250 = 210CFM, 292
Big (truck 292) carb =250CFM
Both rated at 3.0" vac.

Billy Nees 08-07-2011 03:41 PM
Re: 1971 chevy 250 carb
 
Quote:
Originally Posted by gcasey (Post 273579)
Small Monojet on 230/250 = 210CFM, 292
Big (truck 292) carb =250CFM
Both rated at 3.0" vac.
Bingo!

greg fulk 08-07-2011 04:09 PM
Re: 1971 chevy 250 carb
 
I bought one of those "big" carbs one time (or i tried i ordered one for a 69 ton truck) put it on the car & it slowed down! The carb that came on the silver has always been the quickest.

john bertges 08-07-2011 05:54 PM
Re: 1971 chevy 250 carb
 
thanks again guys


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