Small block intake manifolds...

MoPar blocks, stock units, can handle lots of power without the need of 4 bolt mains like a Chevy does. However, it is a bennifit to have a 4 bolt main for your engine. At your level, you'll not need it so long as you don't beat the stones out of it or constantly go to really high RPM levels.
You'll have a long life engine if you keep it under 6500 RPM's.