440source Stealth head review and flow numbers

A couple weeks after he tested the Stealth head, he had a stock Ede RPM on his bench.

From his videos:
Cnc ported Stealth:
Lift——-I/E
.100— 69.0/56.3
.200—143.5/114.8
.300—206.6/149.2
.400—235.3/174.7
.500—262.2/189.5
.600—273.0/200.3
.700—284.5/208.3

Ootb Ede RPM head:
Lift——-I/E
.100— 69.7/58.4
.200—134.7/112.7
.300—200.4/147.0
.400—244.7/172.7
.500—263.7/188.2
.600—285.9/198.6
.700—286.0/205.4


I was shocked to see the pathetic numbers he got out of those heads. I quickly ported a set that maxed out around 267 if I remember right to over 300cfm with little effort.