When would you need to go to bench flowed injectors?

I've been looking at upgrading the injectors. So far I've found that most people perfer the SVO's. They come regular and bench flowed for a hundred more. What difference does this give you and would it be needed in 450Hp or less LT-1, thank for your replies.

Balanced injectors are good to have. You can have your stock injectors balanced. I have read that factory injectors can be off by as much as 30% between each other from the factory sometimes.

Your 24 lb injectors should work just fine up to around 400 hp or so before going to anything bigger.

I've heard that too. The motor is rebuilt, no dyno, I listed the mods awhile ago and the concensus was about 370 at the wheels?? Also, the injectors have 168K on them. I was thinking 30# SVO's? and a tune from Madwolf.

If it were me, I'd just get my stock injectors cleaned and balanced.

How much does that run? and where are places that can do it?