Suggestions on performance upgrades for 225

Probably should measure first before you shoot it down. It fits with no issues in our bay and were still using the factory air cleaner for the one barrel. Granted it's been modified to fit the 4 but the location is not that far off from stock maybe an 1" or 2 max. It's slightly taller due to the carb but that can be dealt with via modification of the air cleaner base.