I was test fitting my header today and it looks like i have a clearance issue with the frame. I think i heard of someone having to notch the frame but i cant remember. Its a headman header here are some pics the header needs to come down about 2 inches in the front to line up with the first bolt hole.
I notched the frame a little and the header fell right in. You think headman would correct this problem i also am going to have do some trimming on the alt bracket.
I put a set of long tubed split headers on my 300-I6 and they had to cut off the collectors and weld the pipes straight together because of a frame clearance issue. Seems like they don't want you to put headers on 6's.