2.5 boost ports question

[David Borg]

When measuring the boost ports do you measure from the bottom of the chamfer or from the top of the chamfer . in the 260hp portmap that US1 had posted measurment should be 2.12 from deck . Im assuming that it has to be measured from the bottom :o

Dont want to start grinding as Im not sure

Thanks

David

[Raceman]

Don't consider the chamfer in your measuring. Measure as if the cyl was fresh bored with NO chamfer.

[David Borg]

Thanks a lot :cheers: