Direct Connection ( Mullen LA ) heads

Garrett Ellison said
1BadColt sent initial flow tests against a set of ported speedmaster for comparison. The low lift flows are amazing. The W2 heads are indeed worth more up top after some extra machine cuts and porting. But still very impressive for the time. Plans are for some seat and guide work with 7mm stems and possibly larger valves if they prove beneficial and aren’t a risk for causing cracks.
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Those are his flow numbers for the mullen heads? Disappointing, but thats standing in 2020 and looking back.
The numbers arent bad, just not big, though they carry to .600 . He probably worked to the exhaust to maintain the ratio, adhering to the rule of thumb at the time.