running rich problem please help

supraking16

New Member
Sep 27, 2009
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georgia
i have corwer cams no degree done just played with them until it ran like i wanted, but i have a aem afr gauge and its been reading fine but lately its been all the way on twelve on idle and full throttle but it was reading fine staying in stoich while driving so i have another afm and body i got form a junk car and it works so i put it on. It idled better but runs rich the whole entire time and it even seems to drive better with that afm than the other, but why would it just now start running rich with both afm any advice. and no black smoke that i know of and no backfiring I'm going to see if the cel came on i didn't even look. p.s. the other afm is also off a junk car but i put it on my afm body would that make a difference since it wasn't on its original afm body. the one i just put on it is with its original afm body and afm and its running rich all the time but drives and boosts and runs good.