When I changed my shorty headers to LT's I noticed the driver's side header had an extreme amount of carbon build up, while the passenger side hade little to none at all. Also, the last two times I went to dispose the oil I changed the mechanic told me that It looked pretty bad and that I should use some engine cleaning additive before my next change. What could be causing this? And what should I do to get my engine running good again? Maybe a good chip tune? Below are my mods.

JDM cold air intake
ASP 4# pulley
Full Bassani

 

do you have a valve cover breather?

 

Could it be that your right side cylinder head is leaking?

Check the back side of the head.

 

Plugs too 'cold'........???

Leaky valve seals.....???

Dan

 

Sorry for asking but how do I check for a leaky valve seal, or a leaking cylinder head?

 

You won't be able to do it. A tech will have to run some tests.....

Dan