Fueling & Injection - Stock Injector flow rate '91 Z28

I have been looking for the flow rate of the Stock injectors that came in the 1991 Z28 with the B2L/L98. My dad owns this car and doesn't drive it much. It is all stock with under 30,000 miles on it. The injectors will not work properly running any type of alcohol in the fuel. He had to replace them once already. I think the alcohol percentage was 10% or so. Soon all fuel is supposed to have 15% alcohol. I was wondering what the flow rate was for the stock injectors. I would like to find an aftermarket injector with a slightly larger flow rate. If anybody has any ideas or has the info I am looking for it would be greatly appreciated.

i'm pretty sure they're 19 lb

flow rate is 22lbs alot of people go with the 24lbs SVO injectors check out Thirdgen.org (http://thirdgen.org/techbb2/)

the 305's came with 19lbs and I think in 90 or 91 the 305's switched to 22lbs

Ok. I was thinking it would probably be around 21 but couldn't find any numbers. Thanks a lot for the response.