Originally Posted By MR_P_BODY
Are you by chance using E-vacs with them ahead of
the O2 bung.. if so.. change that.. you will get a
bogus A/F reading... also if the bung is near the
exit of the collector.. that will give you a lean
number also
wave

Evac is capped.O2 should be back far enough in the exhsust pipe.
Collector is 4 inch going into 4inch exhaust reduced to 3.5 In front of the muff When I remove the exhaust,I will need extensions and put an o/2 bung in them.
I Thoght bleeds & jet changes effected the AFR differently realcrazy

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HEMI-ITIS has no cure.
My condition is fully BLOWN!!