I thought you fellers would like to see what I've been up against trying to get my truck to idle. I put these injectors in two years ago with my new engine, and I've always thought all of my idle problems were due to my cam, even though the cam was supposed to idle almost as good as stock. I found one exhaust valve chocolate-brown colored, the rest were white. I decided to get the injectors cleaned and tested while the engine was apart, and this is the test result:

 

that's interesting! Good find.

 

well, which injectors are they?

 

Siemens 60 lb'ers. I don't know the part number.

 

What do you use to check each injector individually?

 

Seen this alot.getting them flow matched is the best thing to do IMO.

 

money. you send them to a clean and test service. i used cruizin performance.

 

Was it very expensive? I was thinking of sending mine in before I take my truck out this spring...

 

I have the same injectors, only I got a flow matched set. I had a hell of time tuning mine till I got some good #'s for them. What cam are you running Mike?

 

These are a "flow matched set", too. In my case, I guess flow matched means that the reseller usually gets lucky when they grab eight out of the bin.
My cam's specs include these numbers: 222, 224, .566, .568, and 115 LSA.