Magnum swap questions

dgc333 is the go to guy on the Magnum and hybrid engines, he answered all my questions a couple of years ago. I'm on my fourth Magnum head/LA build now, and they run great. Lots of torque, my '72 Swinger ( 10.5 cr 360) ran 13.80s with a 3.55 gear last fall. Also gets 19 mpg all day long.
Bob