Got a 67 (my 2nd 67) this summer with 289, been fixing different issues and just noticed that they had the passenger side with the larger breather looking cap with hose to sure cleaner. They had the drivers side setup with a PCV valve to the base of carb. Won't this create a vacuum on both sides? I'm thinking of putting breather only on drives side and plugging carb hose.
chevy runs deep, Don't step in chevy!
289 - Holley 4150 570cfm; Performer intake; mild cam; MSD HEI; 302 heads; Roller Tips; Hedman Tri-Y headers; H-pipe w/Flowmaster 40's; 9 in posi 3.50; 205/50-17F; 225/50-17R.