When using the single-vacuum distributor, the vacuum hose runs from the vacuum port on the left side of the carburetor to the vacuum canister on the distributor. In that case, the vacuum port on the rear of the carburetor must be plugged.
For most cool season grasses and for folks living in northern climates, the best time to plant grass is in late August, early September. Depending on exactly the climate you have and the type of grass seed you're planting.
In frost-free areas of the state, plants can be seeded in August through March. Pumpkins should be spaced with 6 feet in either direction, except the bush types. Plant 3-4 seeds per hill, then thin when the plants are 2-4 inches tall. Climbing varieties like Seminole can be trellised for more space.