Quote:
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All valve sizes used for baseline flows on intakes were 2.071", except on the "J" head which had a 2.00" intake. All exhaust valves were 1.625". All flow tests were conducted at 28" of water.
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This is from the head comparison you provided...
It's a bit misleading 88Coupe.
Only some '66 B & '67 C heads came with 2.07 valves.(Toro motors)
So...saying
all A,B & C heads flow the same is false.
All A,B & C heads that were modified with(or came with) 2.07 valves flow the same would be a lot less misleading.
Sorry to beat this point to death, but if you find a set of A's They won't flow the same as Toro C's...