Need valve train advice 318...

That's a 6800 rpm cam and it doesn't start pulling until 2600. At least 3.91 gears with short tires will be needed.
243/251 @ .050" and .546"/.566" lift
2600-6800 rpm

Springs should have 130 pounds of seat pressure with 1.7" installed height.

Lunati is correct in telling you to change springs but that is not the cam you wanna run if you are not planning on building a hot street/strip car.
What is the intended purpose of the car?
What compression?
What gears?
What size tire?
Everything in the motor needs to work together.