Need new springs for my '65

[Flyboy '65]

I'm not sure what springs are on my 1965 Chevy C10 truck, but the truck bounces all over the place when I hit a bump in the road. It has new shocks all the way around. The rear shocks are air shocks. I have the 350 motor in the front, and was wondering if the standard springs were ok or if I needed to go to a stiffer spring in the front due to the heaver motor. I like the rake of the truck now as it is but the ride is just too bouncy.

Plus while I'm at it, can a sway bar be added to the front end. I have been looking at some in the LMC catalog and was thinking about installing one to help with the roll that occurs when I go agound a corner.

Any help would be greately appreciated!!!