Hi Twisted6...Larry !
In time...Sorry for the hard words,I was upset in that time, so hard feels had gone !As for the Lump Ports have a different shape, just take a look between Kirby's lump port shape ( brazed-in ) and the PES ones ( aluminum bolt-in ). The Kirby lump starts in the intake port floor, but PES starts as a constant height (5/8, 3/4 tall...etc)in the intake port floor showing a smaller intake port crosswise section area with purpose to enhance the air fresh mixture velocity ! Hope you figured out my statement...!
Thank you,
MALDONADO
Brasil - S/A
