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HC are super high carb is lean @2500 rpm

treihesse

Bronco Guru
Joined
Aug 1, 2008
Messages
1,458
Ok got emmissions today and the truck is running super high HC. and it showed really lean at 2500rpm. Should I go richer on the jetts Im at a loss for this truck. Anyone wanna lend me a carb to test it on me truck??
 

broncnaz

Bronco Guru
Joined
May 22, 2003
Messages
24,341
Yes go richer. How much is hard to say if you have a local shop that can test for you after the jetting change then You should be able to get then to allow you to tune it so its right. You have the Edelbrock carb right? should be able to do a quick rod swap in 2min or less.
 

welndmn

Bronco Guru
Joined
Nov 12, 2001
Messages
2,112
You could have a lean miss, but post up the rest of the reading to know for sure.
 
OP
OP
treihesse

treihesse

Bronco Guru
Joined
Aug 1, 2008
Messages
1,458
HC was 3200 at 2500 rpm and Co was at 0.15, at idle the Co was at 1.5 and the HC was at 300
 
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