E58 400 plus HP Dart sport build

Unless you port the heads you aren't getting 400hp out of it with a XE268H camshaft. It's a 340-360HP deal.

The color is BUENO... like that a lot.
See engine labs dyno build 360, I do plan to do some head work and I'm bumping compression up as well 10.2 to 1 should be right on the edge of 400 with better compression which they left bottom end stock pistons. Modifying And Testing A Dodge 360-Cube LA Small-Block On The Dyno