Originally Posted by CypressMidWest

Maybe. I just think it really places more emphasis on having a "GOOD" motor. If you get a 17.5 that's not quite perfect, there's not alot you can do to get more out of it. At least with the speedo adjustments you could tailor the power delivery to suit the motor's powerband. I have a few 17.5 motors, and they require different speedo set-ups to achieve the same lap times. Just my experience........