La intake with magnum heads
aint bought the heads yet?
Try some EQ heads.
http://www.aamidwest.com/enginequest/eq-cylinder-heads/chrysler-magnum-head/
EQ-CH318B
This is our Magnum head that uses all Magnum rocker parts with LA style intake bolt pattern.
Chrysler 318 and 360 cylinder head built from a MAGNUM casting that has been drilled for a early intake manifold bolt pattern.
And do a search on them.