If they weren’t fueling that’s a tuning issue. There’s plenty of documented issues with the secondary’s sticking. Some people can add a wrap on on the spring and that solves it. Others loosen the screws on the blades and recenter them. I ended up buying the adjustable progressive linkage and have no issues now.
1941 Chevrolet AL 3/4 Ton previous Portsmouth Ohio Fire Dept
1959 Chevrolet 3100
1966 Chevrolet C10 "Sunoco Truck"
1986 Chevrolet C20 Crew Cab 454 lowered 6"
1991 Chevrolet R1500 Suburban LS 6.0/4l80e swap lowered on Qa1 coilers
1994 Chevrolet c1500 lowered 2/4 on 17x11 Billets
2000 Chevrolet Silverado 1500 full custom on air bags.
| 
