If you're replacing the cam, don't bother with the Hughes cam snout extender, just get a long nose cam. Less stuff to go wrong. Any LA roller retrofit cam will work fine, just keep in mind that the lift will differ because of the Magnum's 1.6 rocker ratio vs the LA's 1.5 and you'll be fine.
I hope the Air Gap is for a Magnum, you DO know the bolt pattern is different from an LA, right?
BTW, welcome to the site!
yessir i do, its already got the magnum air gap on it. Thank you so much for long snout cams idea , I haddnt even thought of going down that route. Any roller cams specifically you would recommend? Part #s? thank you