New LS1 Owners - Newbie Tech - Had anyone used these heads?

Im building my first LS and Im still learning so any help is great.
Has anyone used these heads?
http://www.jegs.com/i/World-Products/955/025150/10002/-1?parentProductId=

with a stock short block, these heads, the proper cam, and an ls6 intake will I be in the mid to high 400HP range and be streetable?

Already have modified the suspension for the power.

Thanks guys

Those heads, LS6 Intake, and a Mid size cam you'll make 400rwhp in a A4. 425rwhp in a M6.

^^^ what do u consider mid size cam?

Get some good trick flows or get a good set of stock heads worked over for the power u want!

^^^ what do u consider mid size cam?

Anything around a 230/230.

those are bare castings FYI... you still need valves retainers springs etc. Get some Livernois stage 3 heads, a 2r cam, LT headers, ORY and LS6 intake should make mid 400's

http://ls1tech.com/forums/multimedia-exchange/907531-livernois-stage-3-head-stage-2r-cam-ls1-ws6-video-460-rwhp.html