Currently running a 3.4" pulley with 6.6lbs of boost and a WOT AFR of 11.0 and 17* of timing.
Can I pulley down to a 3.3 pulley without re-tunning?
I'm hoping to gain .5~.7 lbs. boost and thinking the extra boost will raise my AFR to 11.4 at WOT. Is this a fair assumption and is it safe?

 

You can pulley down -- I'd run a log to be safe, but at any rate, tuning shouldn't be an issue

 

I would think you would be fine, go for it just monitor it to make sure all is well.

 

Mike

I might have a 3.25 lying around, I'll check.

 

Brian,
I already have a 3.3" pulley. Thanks anyhow.