Advice for Noob with Slant 6 Barracuda

To keep this a none opening of the engine the first thing to do is remove the little down pipe at your exhaust manifold and go 2 1/4' to a new muffler and exit with a 2' over your rear end and out the back, Remove the points and updare to electronic ignition.
Run these plugs (remove the washeres if you still have the drool tube head) I have in the first picture.
doing this will help more then most V8 folks know.. I did a offey 4 barrel but that would be up to you, a good 2 barrel will do well.