1971 chevy 250 carb

john bertges · 08-07-2011, 01:07 PM

hi anyone know the cfm of a chevy 250 monojet it is on a 1971 nova

Dragsinger · 08-07-2011, 01:21 PM

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

thanks

Dennis P Chapman · 08-07-2011, 01:58 PM

Billy Nees will know also when he see this he will answer you.

greg fulk · 08-07-2011, 02:08 PM

175 cfm wait it may be 150....it's one or the other

gcasey · 08-07-2011, 02:37 PM

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

Quote:

Originally Posted by gcasey

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

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

thanks again guys

08-07-2011, 01:07 PM	#1
john bertges Junior Member Join Date: Oct 2007 Location: coram ,long island ,ny Posts: 20 Likes: 0 Liked 0 Times in 0 Posts	1971 chevy 250 carb hi anyone know the cfm of a chevy 250 monojet it is on a 1971 nova

08-07-2011, 01:21 PM	#2
Dragsinger VIP Member Join Date: Jul 2008 Location: Liberty City [East Texas] Posts: 1,760 Likes: 5 Liked 99 Times in 60 Posts	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. __________________ Larry Woodfin 471W

08-07-2011, 01:28 PM	#3
john bertges Junior Member Join Date: Oct 2007 Location: coram ,long island ,ny Posts: 20 Likes: 0 Liked 0 Times in 0 Posts	Re: 1971 chevy 250 carb thanks

08-07-2011, 01:58 PM	#4
Dennis P Chapman VIP Member Join Date: Jun 2007 Location: Toms River NJ Posts: 1,594 Likes: 409 Liked 53 Times in 25 Posts	Re: 1971 chevy 250 carb Billy Nees will know also when he see this he will answer you. __________________ Dennis P Chapman 1904 STK NHRA National Record Holder Car Owner.

08-07-2011, 02:08 PM	#5
greg fulk VIP Member Join Date: Jan 2003 Location: jackson Posts: 1,165 Likes: 0 Liked 5 Times in 3 Posts	Re: 1971 chevy 250 carb 175 cfm wait it may be 150....it's one or the other __________________ Greg Fulk 308 308X P/SA "ALL AMERICAN"

08-07-2011, 02:37 PM	#6
gcasey Junior Member Join Date: Jul 2004 Location: Hastings, Michigan Posts: 33 Likes: 0 Liked 5 Times in 3 Posts	Re: 1971 chevy 250 carb Small Monojet on 230/250 = 210CFM, 292 Big (truck 292) carb =250CFM Both rated at 3.0" vac.

08-07-2011, 04:09 PM	#8
greg fulk VIP Member Join Date: Jan 2003 Location: jackson Posts: 1,165 Likes: 0 Liked 5 Times in 3 Posts	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. __________________ Greg Fulk 308 308X P/SA "ALL AMERICAN"

08-07-2011, 05:54 PM	#9
john bertges Junior Member Join Date: Oct 2007 Location: coram ,long island ,ny Posts: 20 Likes: 0 Liked 0 Times in 0 Posts	Re: 1971 chevy 250 carb thanks again guys