Have not posted here in a while cause I don’t have my boat anymore. I do however follow posts though.
Anyway, to take advantage of your cubic inches put some Brodix BB2s CNC ported on that and never look back. I know they are $$ up front but if you buy a set of used Irons you still are going to have to take them to a machine shop and have them gone over. Save this money and put that toward a set of new brodix heads. I did the same thing you did when my boat was N/A. I spend good money on a set of Irons and in reality it was a waste. When I went with the blower set up it was a no brainer to go with the Brodix heads. Mine were ready to go out of the box and the springs even matched my roller cam requirements. When I sold the Brodix heads 4 seasons later, I got a little less than I paid for them. You cannot do that with irons.