Originally Posted By 451Mopar
They flowed 377 @ 0.800" (360 @ 0.700") on a 4.310 bore fixture and no radius port entry.

If there was no radiused entry used, the numbers aren't valid. Yet, those tests look fairly consistent with other tests I've seen.

Testing without a proper entry shape jacks up the results. Nobody I know who does this stuff ever tests without one.