M20 B20/B25 air flow sensor different?

[andrew_baran]

Hi all,

I've done a B25 swap into my 320, and the replacement engine didn't come with an air flow meter. I've read that the sensor is a different diameter on the 320 and will choke the 325 engine.

I was wondering whether there was a different sensor required again for the larger throttle bodied 6E high compression engines? As i've had to replace the throttle boot etc as well.