Those are the 2 engines I have been looking at most.

Is the 3 port the way to go or should i get another 5 port like my V spec. I think the power band is a bit strong for some smaller tracks. Like a track that a 13 tooth clutch bell would be used or less then a 100 ft straight. Maybe im wrong. I know power is in the trigger finger but a 5 port has a strong power band.