8.1L Marine Injector settings???

I am using 8.1L marine injectors which are 44#ers and i am wondering what settings i should start with. I was thinking of using the 8.1L regular (31#ers) and adjust the flow rate or using my stock settings (24#ers) and adjust the flow rate.

Which would everyone recommend since exact data is not available?

Any suggestions?

If a marine ecm is able to be read by efilive then find a 8.1 marine ecm on ebay or maybe call a marina.