way to rich
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Freshman User
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way to rich
can somebody give me some advice, I have a 302 in my truck with a mild performer cam e- street heads small valves performer dual plane intake headers. My 4105 600 cfm manual choke carb is way to rich I have checked the floats they are at 7/16 just like the manual says. Its mostly when idling and very hard to start and when it does lots of black smoke. could a 600 cfm be to big for a 302. O ya I am running 5lbs fuel pressure. Need help.
Hotshot
Joined: Mar 2013
Posts: 14,255
Likes: 199
From: Phoenix, Az.
can somebody give me some advice, I have a 302 in my truck with a mild performer cam e- street heads small valves performer dual plane intake headers. My 4105 600 cfm manual choke carb is way to rich I have checked the floats they are at 7/16 just like the manual says. Its mostly when idling and very hard to start and when it does lots of black smoke. could a 600 cfm be to big for a 302. O ya I am running 5lbs fuel pressure. Need help.
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Freshman User
Joined: Nov 2008
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Thanks for the advice. but when it comes to carbs I no nothing the two rods are out now and they have orange springs but I don't know the size of the rods. the carb right now is stock. So could you dumb it down for me thanks.
Hotshot
Joined: Mar 2013
Posts: 14,255
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From: Phoenix, Az.
*
REF # MAIN JET METERING ROD CHANGE FROM BASE
1....................1428 (.100") .......................... 1451 (.070" x .047")*..............................none - stock calibration*
Here is what I suggest. Part number 1459 metering rods. Please let me know how it turns out.
*
25....................1428 (.100")............................1459 (.075" x .047") ..............................R
Hotshot
Joined: Mar 2013
Posts: 14,255
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From: Phoenix, Az.
Two steps is 8% leaner.
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Fleet Mechanic
Joined: Oct 2005
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From: Gainesville, GA
This was in the days before electronics and quadrajet carburetors. The number 10 means jet sizes not percentages.
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Lead Driver
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I have a Carter "Strip kit" from 20 odd years ago. Seems all the metering rods had numbers stamped on them for easy reference. I used to play around with that style carb many years ago. I've since changed to Holley and never looked back.
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