[markjohnson]

mnyenko is correct in that you need to replace the frame mounts with the proper big block frame mounts. These are relatively cheap and any of the Nova restoration companies will carry them. They will move the motor away from the steering box giving you the clearance you need. As far as headers go, buy the Hooker Comps #2457 for $159 from Jegs. They have 2.00 primaries, great spark plug and starter access and are very easy to install. Trust me on this. Great header for the money and it sure beats paying over $400 for Hooker Super Comps.