Looking to maybe buy the adjust a jet on my Holley 4160 as I am at sea level but taking a road trip to Wyoming and Colorado this summer. This would make jetting much simpler for high altitude driving. Years ago I had an adjustable main jet on my VW bug, it worked great.
When I crossed the mountains from Illinois to British Columbia in my rod, all I did was increase the idle speed a little, when we were approaching the mountains. That was all the fiddling I did on the AFB I was running at the time.
The Jalopy Journal
