Brian did that same test with an RPM and SV and the SV flowed more air. SV made less HP and a bunch less tq on the 408 engine. Guess it's all specific to what you want to do.

http://www.carcraft.com/techarticles/ccrp_1006_small_block_mopar_stroker_dyno_test/index.html

I like the old LD intake.