having carb issues running rich

antyates · 06-21-2006, 08:06 PM

302 .30 over ported dart heads, msd, 560 flatt tappet cam, 650 holley hp 4150. Running way to rich. My first carb engine- know nothing!! bought long block off buddy, bought carb from Jegs, just bolted on. Also i have timing issues. Its a misquito killer with all the fumes and smoke out the tail pipes, Anyone close to Columbus Ohio interested in taking a look at it?

Rev · 06-23-2006, 04:42 PM

Not close to Columbus. I'm wondering what the 560 in "560 flatt tappet cam" refers to?

Rev

antyates · 06-23-2006, 06:29 PM

The lift, This is also part the "know nothing" in the paragraph. Trying to look for some direction, Changed jets (lower) and power valves, Still running rich

woodsnake · 06-23-2006, 07:27 PM

You might try this:
Unplug 'half' the cylinders, 1 and 4 on the passenger side, and 6&7 on the driver side. Adjust the screws on the side of the carb (see the instructions that came with the carb) to get the best engine vacuum. THen, change the cylinders (hook up 1,4,6,7... unhook the others) and adjust for best engine vacuum again. You may get better results adjusting one side of the carb at a time...... Do you have a vacuum guage? They are no very expensive, and very imprtant to have on a carbed engine.....

antyates · 06-23-2006, 09:35 PM

picked up vacuum gauge, Adjusted idle mixture screws, got higher vacuum, running not as rich.. Great advice, Thanks alot!!

06-21-2006, 08:06 PM	#1
antyates Registered Member Join Date: Jun 2006 Posts: 20	having carb issues running rich 302 .30 over ported dart heads, msd, 560 flatt tappet cam, 650 holley hp 4150. Running way to rich. My first carb engine- know nothing!! bought long block off buddy, bought carb from Jegs, just bolted on. Also i have timing issues. Its a misquito killer with all the fumes and smoke out the tail pipes, Anyone close to Columbus Ohio interested in taking a look at it?

06-23-2006, 04:42 PM	#2
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	Re: having carb issues running rich Not close to Columbus. I'm wondering what the 560 in "560 flatt tappet cam" refers to? Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe

06-23-2006, 06:29 PM	#3
antyates Registered Member Join Date: Jun 2006 Posts: 20	Re: having carb issues running rich The lift, This is also part the "know nothing" in the paragraph. Trying to look for some direction, Changed jets (lower) and power valves, Still running rich

06-23-2006, 07:27 PM	#4
woodsnake woodsnake Join Date: May 2006 Location: Nampa, Id Posts: 17	Re: having carb issues running rich You might try this: Unplug 'half' the cylinders, 1 and 4 on the passenger side, and 6&7 on the driver side. Adjust the screws on the side of the carb (see the instructions that came with the carb) to get the best engine vacuum. THen, change the cylinders (hook up 1,4,6,7... unhook the others) and adjust for best engine vacuum again. You may get better results adjusting one side of the carb at a time...... Do you have a vacuum guage? They are no very expensive, and very imprtant to have on a carbed engine..... __________________ Disclaimer!! All info provided by the woodsnake is free, and worth what it costs!! Use with caution What can I say, I like Cougars... " yer darn right wow " http://woodsnake4462838.tripod.com/68_part_2 http://woodsnake4462838.tripod.com/cougars_at_rest/

06-23-2006, 09:35 PM	#5
antyates Registered Member Join Date: Jun 2006 Posts: 20	Re: having carb issues running rich picked up vacuum gauge, Adjusted idle mixture screws, got higher vacuum, running not as rich.. Great advice, Thanks alot!!

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