I believe the 7.3 is basically the same on air flow as a stock 12v. Numbers I find are 140-150 cfm @28" for a 12v, and 110-115 cfm @28" for a 7.3. So average 12v over 2 revs hitting all 6 cylinders means 840-900 cfm, and 7.3 over 8 cylinders moves 880-920. I don't know about swirl, and I know the lack of runner length is poor design. Either way, that "should" put us on par with 12v power per boost capabilities. At least it won't be dramatically different. I don't know what ported 7.3 heads flow, but I'm not sure this is the worry currently. This is only intakes, so not the whole story...
How do we go about finding how much travel the pumps are capable of, and what that equates to in fuel? I agree that different springs, with higher pressures and without coil bind in the travel necessary. Anybody have access to a spintron?
Is CNC Fab making p-pump conversions also? I wonder if some of their parts would be available, like valve covers and anything for injectors. I know they have a front cover with their name on a pulling truck, maybe more. I didn't see anything on their site though. I thought Corey had p-pump conversions he talked about, just not sure.
Roller lifters have tie bars to keep them from spinning. Link bar lifters, whatever you'd like to call them. An idea anyway.
If you just look at power output with nitrous, 300 or 350cc injectors have done like 1200+ hp right? The only reason they don't without the bottle is air flow. Whether that be compounds with really high boost, or great flowing heads and a little less boost. Either way, nitrous is only cooling the charge and adding oxygen, it isn't fuel. Yes RPM range is a factor here too, but you get the idea...