Thanks Gdadas. My truck is a 64 c10. I've removed a 250 6 cyl early 70's era. Replacing with a rebuilt 283 out of 1965 Chevelle. The 283 had log style exhaust manifolds. I want to replace log style with ram horns that I had laying around, but no info on them. The driver side manifold has alternator bracket bolt holes on the front versus the more common top side bolt holes. My head hurts searching for the correct bracket for the front as shown in the picture. There are alternatives out there, but was hoping to use the front holes. Thanks.