[Tominator]

ford injectors
19lb - orange
24lb - light blue
30lb - red
36lb - dark blue
42lb - lime green

Little tidbit I found on another site.

[GTRaptor]

Thanks Tom.

[Mana4Real]

I think 21lb are pink

[Tominator]

Here is another interesting link on how much horsepower a certain size injector might support on a super/turbo motor...
http://www.motorsportsdigest.com/perform2.htm

[Tominator]

...And another site with calculations on HP v. injector size..

http://www.rceng.com/technical.htm

[mamastang95]

I got the my car used several years ago and some things had been upgraded. I just did a top end job on it(head gasket went bad) and I looked at the injectors. The plastic on top was Beige or tan. and the o rings where green can anyone tell me what they are??

[tormenting5.0]

sounds like you have #19's in there