I Show The Flow Differences Between Backcut And Nonback Cut Valve That Will Be Dyno Tested
I show the flow difference between a non-back cut valve and a back cut valve. This is the head and valves that will be used for this dyno test coming up this year.  Link to become a channel member https://weingartnerracing.braveshop.c... Link to buy digital books https://weingartnerracing.braveshop.c... Link to buy the heads https://weingartnerracing.braveshop.c... #ls #portingpolish
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