Are the B/T and S/T intake cams not the same?
And it's the B/T exhaust cam that has slightly more lift that makes B/Ts interference engines?
From all the research I did into running open trumpets with no intake chamber, air intake temps are higher, being located above the exhaust sandwiched between the block and fire wall, and made no gain in power.
They sound fucking mean though, maximum DOORT spec.