Im yet to see any dynos of the 1820s, wonder how they perform? The other side of what I was thinking was going for broader power and more efficiency by extrude honing the plenum, larger throttle bodies, porting the heads and then maybe decking them a bit to increase compression from stock to about 9:1 seeing as it only makes 24psi this shouldnt be too high. This may get me a little bit more top end but a bit beefier bottom end curve. Any thoughts?