look at this plug, am i rich/lean?
 

this plug has a few thousand miles on it. im about to put in an adjustable fuel pressure regulator and i think because its white, im lean, right? just wanted to ask before i adjusted it.

also, i put the gauge on first and when the car was at temp, with vacuum off, it was at 41psi with the stock reg on there.....weird. what pressure should i go to? 43? more?

thanks guys

RE: look at this plug, am i rich/lean?
 

yes, lean. best way to figure out ur psi, etc would be a dyno tune

RE: look at this plug, am i rich/lean?
 

actually I think you are fine, you want alittle color on the plug not a black plug. The only problem I see is if you are trying to figure out if you are lean or rich at WOT. In order to figure that out you must put in new plugs, make a pass and then pull the plugs right away, once you drive around on the plugs it's kinda hard to tell whats going on.

RE: look at this plug, am i rich/lean?
 

yea you gotta run it at WOT and push in the clutch and kill the engine then coast to a stop and pull the plug.

RE: look at this plug, am i rich/lean?
 

well just to be on the safe side i raised the pressure to 42psi. id rather be rich then lean. as far as dyno tuning goes, i agree but im not going to get it tuned now, then do a cam in august and then tune it again. the dyno tune will have to wait for my e cam and new timing chain. i do not look forward to that install