Anybody Running Headman Headers?
I talked with a few engine builders around here, and they actually reccomend stepped headers, If you can swing the cost since most are custom jobs.
The most common sizes are the 1-3/4 (almost every manufacturer makes these)
then 1-3/4 stepped to 1-7/8 are popular from QTP and Edelbrock and maybe Kooks
then 1-7/8 and anything bigger probably only comes from QTP and kooks

