I have stock carbed 502s that are in need of some
new exhaust. I was thinking on the revolution marine
manifolds. They seem like a good price. Does anyone
have any experiance with them?Are the good up to
500hp? ( I may build my engines to about 500 h-p in
the future. Can they be used with silent choice? Are
others any better for the money? Can I expect any
Increase in performance with stock engines?
Thanks for any help you can give me
Rick

Do a search epeek. This same question was discussed last week I believe.

Dave