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I have a ported TPI base I want to have flowbench tested, the man running the shop needs to know how many inches of water they (intakes) are originally tested at so I have an accurate reading.
I understand most heads are tested at 18 or 28? in.
28" Water. It's generally recommended that the intake flows 10% more than the heads in order to not be giving up HP. You'll also want to port match it to the head's intake runners.
Last edited by korvetkeith; Feb 21, 2006 at 09:19 PM.
I've always thought that flowing an integral head/intake would be an excellent way to compare intakes and head/intake combos. Would be cool to see done.