Dirty Injectors
 

Well I had thoughts of getting rid of my 1995 Camaro Z28 A4 but I think I'm just going to keep it. I got it dynoed last November and the injectors were dirty and the knock retard was killing power from 4000rpm up. The car shifts at 6000 rpms so I figure I'm losing some what of 2000 rpms of power. If I was to get a set of stock injectors to correct the problem and go get a better tune, how much do you think this would help me out performance wise. I run 13.80s consistent with the dirty injectors and street tires. Also what are the biggest injectors that I could use on a stock 95 Z28. I just put a new stock fuel pump in it and don't wanna have to change that out again!

How many miles are on them..I have a set of Injectors here, they came off my LT1, and they haven't sold. I believe they were one of the things that the porevious owner replaced before I bought the Car, they have about 40K on them. They ran great for me, no problems at all.

Well my car has 142,500 miles so I guess thats how much miles are on 'em

Well if you're staying stock, then don't go any bigger than stock. However, you could benefit from a simple mail order tune.