Six Packs are cool, but Ive never seen one run with a good single plain manifold and a good 4150 or dominator for that fact with those kind of cubic inches/application. Ive never had any experiance with a Team G manifold, but a victor or M1 single plane with a good 4150 like a 950HP or 1000HP or a 4500 dominator would no doubt make more power. Six packs are awesome on street cars or cars in classes that HAVE to use stock carbs. Other than those two variables, single plane, four barrel is the way to go.