Tom I may very well decide to take your route. I like the idea of being able to use the bigger port if the timed injections work as advertised but I also could get in way over my head with the electronics. I have been able to tune the mega squirt before so I would like to stick with that. I should just add some dividers and go with it. Do you feel I could still reach my 500hp. goal with the dividers? Just a little more screwing around before I make a decision. I seem to make it more difficult than it needs to be but my boat still floats and thats what counts. Thanks for the help.