Maybe this is an easy question. I am looking to buy new injectors, i am going to go with the stock size (22 lb). But they seem to be hard to find. (aftermarket wise) I can find 21 lb but no 22 lb, will the 21 lb be alright ? I don't really want to go any bigger in size, since the chip i have is burnt for the stock size.

 

Go with the accell 23's. Did that plus and AFPR on my car and it made a huge diffrence. I did some light porting on the plenum, along with a set of pullies and it took 3 tenths off my time and gained 3 mph.

 

where's a good place to buy 23 lb accells?

 

There's Summit, Jegs's, ect...

May also want to check rich@cruzinperformance.com, I bought my Accels from him.

 

While max flow is what people usually worry about, there is the matter of what happens at the shorter operating pulse widths of the injector.
The various different designs, pintle, ball, disc, all CAN have drastic differences at near idle conditions.
If you swap them out and have the BLs jump, at the lower rpms, you'll know why.
On stockish type engines, they can be pretty forgiving with the ecm compensating for things.