Where is he going to put the LSA?
The 75% rule is ok for a start, but good heads are more like 60-65% exhaust/intake flow. And I wouldn't say they exhaust is that good, it's that the intake is not that great.
How the hell did Dave let rockers get out the door with the wrong ratio? He blows his own horn about his ratios being correct. You have to check everything. That's one reason why it costs so much to do this. You have to verify everything.
Keep us posted. Hopefully some learn from this episode about checking and rechecking and double rechecking.