I'm getting ready to order some injectors for my 408 in my 05 V and have a few different sizes I'm considering. I lookin more toward ls3 style injectors as I'm running a MSD airforce and aftermarket LS3 fuel rails. I'm looking to make around 500rwhp. Right now I'm considering factory LS3 42#, L96 50#, OR LSA 56#. Any opinions on what would work the best? I know most say 42# are fine but I would like a little bit of breathing room for improvement in the future.

 

go with the 56lb. plenty of room to grow that way and the engine is only going to use what it needs anyway

 

Ill probably end up going with the L96 50#. I have since learned the LSA 56# have a blower specific spray pattern that doesnt play well with NA intakes.