Ok, I'm a Ford guy so maybe you guys could help me out a bit....

I really like the way my BBF's behave with the 4 into 2 into 1 merge collectors..... I'd like to do the same thing for the 'maro when I eventually get around to building headers for it.... My question is this, on a BBC, which tubes should be paired up on the 4 into 2 part of the header???? We've paired them up on the Fords to give a bit of assist to the cylinder scavenging and wondering if it makes a difference on a BBC?????

Pat helped me once on some step headers for a Ford, will step headers be better, or should I combine the step headers and the merge collectors???? Got to build them anyway, might as well try to pull a bit more power while I'm at it.....

Thanks