fuel systems
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Passing CA Smog help - High HCs
I have a 1977 GMC 5.7L 350 given to me from my dad. It passed smog no problem less than a year ago for the title transfer. Now, it failed CA smog due to high hydrocarbons (3485 ppm @ 15MPH and 1350 @ 25MPH). Also noteworthy is that the technician said the crankcase ventilation hose that feeds...- 77Matt
- Thread
- 1977 carburetor fuel systems smog
- Replies: 116
- Forum: Carb Fuel Systems
