300,000+ miles... Replace Fuel Injectors?

[MenaceSQL]

Hello peeps. I'm about to throw in a new engine (3VZ) in my truck. The fuel injectors have over 300,000 miles of operation on them. Should I upgrade them since I will be throwing on a set of headers, cat, exhaust, and bored t-body or just have them cleaned just to ensure proper operation? If upgrading, any recommendations? My goal is to get more performance if possible. Thanks in advance.

[JeremyH]

If they are firing properly and they fit the new engine, then reuse them. I pull mine about once a year and clean them with carb cleaner. Make sure to lube the o-rings before you put them back in. I use vaseline.