Stop in for a cup of coffee

Then buy both and see which one runs better. They are both good, I just prefer the older ones myself...
The guy wants to make the trade after the summer. This suits me perfectly 'cause then I have a chance to try my car. I might even be able to borrow the AirGap to try it out.

The main thing for me was the magnum heads he has. The intake swap came later, by chance.