318 with Edelbrok perfomer intake and 600 cfm 4 barrel, what headers please?

Newbomb Turk said
No. There isn’t a decent V8 I can think of that would want a 1.5 inch tube.

You need to drag your *** to a dragstrip and see how many cars have 1 1/2 inch headers on them.

The answer is NONE. And disabuse yourself of the notion that a street car would want something different.

I was talking about street cars. I'm not saying that it's correct but look how good those 5.0 mustang's ran and they have 1 1/2" primary tube headers. What's a pain in the butt is why these magazines print information that can be miss leading