If they are used, Send the injectors to Chuck at Cody Motorsports and get them cleaned and flowed. He will tell you if they are 30's or 42's.......and you will be sure that they are working perfect. you never know about used stuff.
There are 2 types of 009's, 30's and 42's.
5207009 = 30-32lb/hr
5208009 = 42lb/hr
As far as the 30's being an upgrade over stock, the stock injectors were 28lb/hr, but thats at the lower fuel pressure of the stock regulator (about 37psi). If you turn the fuel pressure up to 43-45psi like most do, the stock injectors flow 30-31lb/hr.
Eric
There are two injectors with the last (3) numbers 009. One is a 30lb and the other is a 42.5. If you look at the business end that goes in the intake you will see the difference the shooter area (where the fuel sprays out) is lot larger on the 42.5 injector. See ya! JohnThanks, this is the p/n on them 5207009. From what I have been able to research is these are the smaller 009's 20/30lbs.
Not to get too far off topic but these were sold to me as 009 but don't match either number turbo dave posted. Got a good price but not sure what I bought.
Good idea. That's why they give you the big bux.Google search took care of that in about 10 seconds