I see that i must do something with the power but i live in norway and H.O parts is rather hard to find here. Can i go with lets say edelbrock intake,tb and new cam and a single 3" exhaust. and some ported heads of a 66 289?
Thor
what year motor do you have ?
it's best just to keep your same heads, and have your local machine shop rework them
that way, there's a warranty, if you go with a new cam, make sure you get springs to match.
Good luck
depending on the year of the standard output, you dont even want to bother with the heads on it