50-1
It should tell you the ratio on the saw.
I use 4oz. per gallon of gas.
The carburetor on a 330 Homelite chainsaw can be adjusted with the 3 screws. Turning to the right increases the richness or gas flow. Turning to the left increases the air into the mixture.
Looks to be 40:1 gas to oil
8 oz of oil per gallon of gas
It called for 32:1, but the 50:1 oils currently available would work.
On ebay
One can purchase a Homelite brand chainsaw directly from the company's website. The Homelite website provides detailed information on their products, part resources, service centers and more information.
The longest recommended was 31 inches. http://store.chainsawr.com/
50/1
40:1