I have some injectors off of an '89 TPI and I'm trying to figure out what lb rating they are. The only printing on them is the Rochester logo and the letters WT or WS. The part number on the fuel rail matches up to a 350 (22lb), but who knows if the injectors are? Any ideas would be great!!

 

Where did you get the injectors from?

 

if it came from a 305 then they're 19 lb, if they came from a 350 then they are 22 lb

 

I bought the TPI setup second hand. I believe it was on a 305 block originally, but when I was looking at the part number on the fuel rail, it matches up with the one used on a 350 (17089025). That's why I'm trying to out if there is a way of I.D.-ing the injectors to see if they're 19 or 22lb ones, other than having them flow tested.

 

I don't know if this helps, but:

https://www.thirdgen.org/techbb2/sho...hreadid=160545

 

What he said.

 

Thanks, guys. I was going to use the search before I posted this, but with it being up and down......... I also found some good information on how to I.D. the injectors at the Street and Performance website www.tunedport.com .