huskerdually
+1y
Dude you have to be more patient, we aren't all sitting around waiting for your posts to see about answering your questions. With the headers if you go with a quality manufacturer you should be alright. I would get ceramic coated.
On the cam thing all I found after about an hour of google was this.
A boat with a 454 about the same year would have
exhaust lift .301 duration 227
intake lift .301 duration 211