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what is the best flowing manifold for the LS motor? i see a lot of talk of whether the LS2 intake or the LS6 intake is better. the FAST LSX intake manifold looks like it might flow better than both judging from price. if you are going for all out max HP from a big stroker motor what would be the best option? what are the LS7s using for an intake?
It all depends on your application. LS6 is the best for most. But for strokers or a crazy H&C combo, FAST is the way to go. Most people have lost HP with the LS2 except for some strokers and FI guys. And for a big cube aggressive H&C motor drag racing setup, a sheet metal intake is the way to go.