360 cam question

Make sure you test fit the exhaust manifold on the driver's side. I used an early A manifold on a 360 and had to grind down the area of the head that juts out by the rear head bolt so the manifold would fit flush on the gasket surface area. Only about 1/8" of material needed to be removed to make if fit great. I also opened up the exhaust ports to match the 360 and opened up the outlet as much as I thought I should so flare of the pipe would still seat on the raised area of the outlet port. Seat of the pants, it runs pretty good with the manifolds.