Here's my posting from the sohc4.net site. I didn't get any hits there, so I figure I toss it up on here. Maybe one of you have some advice.

Keep in mind, it's an old bike... Max performance isn't my goal, but a total bog isn't neither.

Thanks,

====

Ok... I had a set of old rusty 4-4 that I got from the PO with the purchase of my 76 CB550K.

I am midway through (4-2), after merging the 1-2 headers, and 3-4. Here are some pics. I don't know if my merging/transition is the best or sufficient for all that matters. Maybe some of you may give some advice.

Tacking the merge...[br][img width=600 height=450]http://i600.photobucket.com/albums/tt82/scartail123/left_merge.jpg[/img]
[img width=600 height=450]http://i600.photobucket.com/albums/tt82/scartail123/left_merge2.jpg[/img]
Under the oil pan (plug and oil filter accessible)
[img width=600 height=450]http://i600.photobucket.com/albums/tt82/scartail123/under.jpg[/img]
Right hand clearance...
[img width=600 height=450]http://i600.photobucket.com/albums/tt82/scartail123/right2.jpg[/img]

Oh, specs on the config...
1-2 merged, and 3-4 merged.
Lengths of the primaries... ~13 inches.
Diameters of the primary, and secondary (I think my terminology is correct)... 1-1/4" OD. I was planning of merging the 2-1, with the outlet 2". I am mating up against a R6 exhaust that I got for FREE from a guy on CL.

I had kept in mine that I wasn't going to make the best header. But I wanted to give it a go, since I had the pipes laying around. And I figure if they did come out good, it would be just gravy.

And lastly the good thing... I haven't spent any money. And only spent a whole day.

Things that I would like know...
Is this config to constrictive? My goal wasn't performance, but I don't want to get worst.
Are the primaries too short? 13"?