What do I look for to ID these injectors?

I have a Holley 4 barrel TBI from Howell Engine Performance. I got this in 1999.

From what I have been reading and hearing, these injectors tend to lose their consistency - Correct?

How can I verify these are the "bad" injectors?

How do I go about getting "good" injectors and where?

Thanks!

 

There are a couple three different flow rates (red are 85 lb/hr), but I think they are all suspect. The newer units have Delphi (I think) injectors. You can retrofit your TBI, but it is pretty expensive. I checked into it with Holley, and decided to just scrap (ebay) the TB and use an OE TB on mine.

 

Where is this coloring code?

Is it on the top or bottom (fuel-outlet) of the injector?

 

It's the whole injector. The 85 pph ones are red. You might be able to go to the Holley website and see what the other colors are.

 

Interesting...

My TBI injectors are silver with a black plastic top on them...

OOps, I see now. I need to take the injectors out of the TBI... and their little egg looking holders.