Anyone run hedman 75340 headers?

[Nikc]

Hey I just picked up a set of hedman header's 75340. They are like new only used on an occasional drag car for a season or two. Anyways ingot them for $150 and couldn't turn down the offer, also picked up a like new mallory unilite distributer and hyfire ignition box for $100.
I was wondering if anyone runs these headers on their b body with a 400 and has any issues?

 

[PurpleBeeper]

I'm not sure of the number, but I have a set of 1-3/4" primary tube Heddman's on my 440 now & they fit perfectly. I've had them for at least 15 yrs. without any issue.

 

[Nikc]

These ones are 2" and 3.5" collector.