New injectors or just new nozzles?

[WBacon]

The truck in my sig. has 160,000 miles and has not given me much trouble. I have a new Garrett stg 2 and I am planning on a transmission. Wondering if I want to do a 50-60 hp injector if I should replace my current injectors given the mileage or just new nozzles? Thanks

 

[LNaugle]

do an injector return flow test to determine what shape your injectors are first... then decide.

 

[WStephens]

I just got my truck back after having the injector lines replaced and had a set of DDP 90 HP nozzles installed and it runs great and no smoke. I do not have a programer or box just a boost fooler on the truck.