All for .370 lift and under ........

Deshroud the chamber and have a 15 top cut added to the 30, that will increase all your .100-.400 numbers.
Basically... have 5 angles with the lower @ 75.

When you want strong flow numbers .400 lift and below with this head.. add the 15. If you want great peak high lift #'s and just 'good 'below ...stop with the 30. This is in regards to the 302 head. Every head is different.