I'm installing Imco Power Flow Exhaust on my SBC. I have the old style thermostat housing that has 4 supplies and 2 returns. Should I run 2 supplies to the manifolds and 2 to the risers and plug the returns or run 2 supplies to the manifolds and call it done?

I asked a similar question regarding Stainless Marine headers earlier this week. It was recommended by other OSO members to run 4 lines, 2 to each header & feed the riser off of the header flange. I have to do that this weekend. However, I have a BB, not a SBC> maybe there is a difference?????

Ok, let's see.....HAA OSO GUYS !! where are ya' !!!