Which injector should I use? Modified M52

[bmw2002tiiagave]

I'm currently in the process of rebuilding an M52 from ground up, but i'm retaining the stock pistons and rods. I recently picked up a set of S52 cams and a Euro 3.5 HFM and OBD I intake mani.

I currently have stock 21.5# injectors and 24# injectors. Which one should I use?

Once I know i'll throw the one i'm not using up for sale!

[10Toes]

I would run the 24 lbs with a proper tune.

[bmw2002tiiagave]

thanks