Best Flowing heads

[Hodrod7]

What are the best flowing after market cast heads for a 355, flat top, stock intake, 500 cfm 4412, solid cam, pure stock, 1.94/1.50 valve 3200 lbs, bolt on ready to go?

[mod71m]

Vortec heads are the best two barrel heads that I have ever used. Either GM castings or EQ castings. The EQ castings are a lot heavier though if you are concerned with engine weight (which you should be).