Originally Posted by mremtr

Well back in the day , more ports ment a leaner mix,thus better fuel economy . BUT this also lead to more rpm and this messed up the tuned pipes magic and you got worse economy ,then better pipe and the economy went up and so on and so forth , now we have this OS 3 port VSPEC that gets retarded economy tuned correctly and the 367 Nova that has like 11 ports also getting good economy ?
So it is really tough to answer that question . There is more magic to the ports than most realize! They control engine temp,timing,rpm, power and the list goes on . Then you have the tuned pipe ! This is an integral part as well !
It is basically the supercharger for a 2 stroke engine . The correct pipe will yield incredible results . The wrong choice ..... total pig !!
And then there is personal preference .....
You will just need to experiment and come to your own conclusions ,and remember to keep notes for your self .