Doug's Headers for 67 Barracuda

dano said
Unless your mild 340 is going to push 400hp or more, 1-5/8" would be just fine. What is your intended use and hp goal?

400-420HP was the goal for my 340.
Purely for a street driven car, my Barracuda has a 4 speed box.

Mild street port on the X heads - 230 / 160 cfm peak
10:1 static comp
Comp XE274H camshaft
Factory '68 4 BBL intake
Edelbrock or Holley 750 cfm carb