I just got another banshee and I want to put a cool head on it. The bike has a stage 3 port job, T5's and thats about it. I bought a cool head with 18cc domes and im wondering if I will need to rejet the carbs after the head is installed. I have a cool head on my other banshee and didnt rejet it but I only went to a 21cc dome not a 18cc dome. I am asuming I wont need to rejet but i wanted to get some opinions first.