Tuning issues

[Outlaw Racing]

Could anyone explain why one side of plugs are lean and other side rich? I have a S Trim on a Windsor. I think it could be running to rich. could it be to much fuel? Please help.

[92stanglx]

What is your setup?

[Outlaw Racing]

First off my set up consists of: 351W approx 475-500 hp C4 4000 Stall 3" exhaust 70mm t-body 80mm mass air Aeromotive 1000 pump 42# injectors. I ran a 11.65 @ 117 before S Trim, after S Trim 11.18 @ 117 but a 1.46 60foot. Than I check plugs one side is rich and one side lean. I know there is a low ten with this combo I guess I need to bring it to a tuner to sort it out. What input can anyone give thanks.

[speedytang]

Sounds like the lean side might have a exhaust leak causing that O2 to come up with a different mixture for that side of injectors.

[Outlaw Racing]

Yes that does make sense about the exhaust leak. Some one mentioned that a C and L meter needs to be contained in a box. My meter is a 80mm and just mated to a power pipe. Any one ever here of that? They also mentioned that the meter is probably sending a bad readind to and from the computer .

[speedytang]

I ran my C&L 80mm meter for 5+ years attached to the end of a Power Pipe with a 8" filter attached. I just would clock it till I had a nice idle and off idle rpm with no stumble.