This page, http://www.edelbrock.com/automotive/man_chrysler.html has the intake and links to figure out intake manifold height. Measure yours like they did. It's easy on a Mopar to do.
It will work without clearance problems.
According to the dyno, I can expect to up HP from 170 to 275. Comments?
What dyno? The Mag's artical or desk top dyno?
If it's the mags artical, you'll get what they did only if you do what they did. A minor departure of what they did null there results and change yours.