Base timing on a 1977 K10?

[84 400]

Truck is a heavy half 77 k10. Has factory 350 with the 4bbi. Truck came factory with No emissions equipment what so ever...So it has no EGR, no cat ect...

What is the timing supposed to be set at initial? Been seeing all different readings online any where from 4-8. My decal is long gone so that is not gonna help. Truck runs okay but seems to have trouble when snapping the throttle or even when using larger amounts of pedal. Would timing being retarded have any effect on this? It has even puffed White smoke and died a few times indicating it flooded out.


So what is the timing supposed to be set at on a 1977 350 4 barrel non emission motor?

Thanks