[AcampoDave]

Ok so here's what i gained on my '64 longbed with a mainly stock '61 283 with the street breather previously converted to a PCV. The vacum went from 19hg to 20hg and the idle increased by 200 rpm. After restoring the original idle rpm, the motor ran smoothly and seemed to have a cleaner idle. It wasnt easy tuning the valve due to it's location on my engine but it was doable. I had to use extra caution to prevent the valve or the allen wrench from slipping thru my fingers and falling behind the engine. (Allen wrench still did, thankfully it didn't drop down the pcv hole.) Would I do it again? Sure. In fact I'm gonna, as soon as i get my '66 back on the road. It's 283 has been moddified a bit with the usual stuff so we'll see how much difference it makes on that one in a month or two.