Well I have my 350 and got it fired up with my 305 injectors. The car runs well but we all know the 305 injectors will not feed this. I use the Holley 670 and Gm Injector pod. WHAT INJECTORS do I ask for a the local Advanced Auto parts? They told me they have TBI injectors for a 1989 Silverado TBI 350 I have the AFPR and Custom chip........the sig. will tell the rest.

Thanks for the help
Brian Felts

 

The 89 Silverado 350 Truck injectors should work.
GM (AC/Delco) Part#'s for the 61 lb Truck 350 injectors is 17112493.
You should have the knock sensor and ESC Module from the 350 also.
Sensor:10456288
Module:16128261
-Rich-

 

Thanks for the reply I have the knock sensor but did not change the ESC Module and it seems to run pretty good Do I really need to change this??



Thanks
Brian

 

I was told to change both when switching over to a 350 from 305.Not sure what the internal differences are in modules but I doubt GM would have two different parts if one worked for both.
I changed out both when I did mine and haven't had a problem.You may not see a problem, but there has been some discussion lately on this subject.
My info came from Chevy High Performance Magazine.
They told me to talk to Ken Casey at Bert Chevrolet in Denver,Colorado.He works in the parts dept and has done a lot of these swaps.He's the one that told me both should be changed as a set, as they're designed to work together for a specific knock frequency.
-Rich-

 

I wouldn't use Advenced Auto's injectors if they are GP Sorensen. I worked at AutoZone and they carry the same things. GP's TBI injectors do not have the right nozzle on them. If you can find a pair of METAL ones then you are ok. GP started making their own (plastic) instead of rebuilding the GM cores (metal). If they are plastic then they are not the right ones and will not work. TRUST ME.

 

If you were me where would you go to get the injectors.



Brian

 

I would get the injectors from a junkyard personally. I don't think $140 for new injectors is worth it since TBI injectors seem to be "tank"
If I were you I'd go to car-part.com and call up some of the stores that cary used parts.
Why don't you just use the holley injectors you got with the 2" unit?

 

Go to GMpartsdirect.com. Got mine for 85 bucks a piece (AC Delco). Turbocity has em too.

 

If I use the Holley pod then my fuel fittings will not fit............Whats the cure for that.



Brian

 

Just thought that I would throw this in...my stock lines fit the Holley 670 that I used on my 350 with no problems that I can remember..