Help with 88 Marathon

[MFD622]

I just bought a 1988 ez-go and could use some input and schooling on this thing.

1. I have been searching this site and it appears ez-go and marathon are the same. Is this correct?

2. This cart has a two-stroke gas engine. I asked the previous owner what gas/oil ratio to use. He said he thought it was 9 oz to 5 gals of gas but since it is freshly rebuilt he was mixing 11 oz to 5 gals. Is this right? I don't want to burn it up.

3. What is the cc or hp of this engine?

4. It has a 3" lift with 23" tires. I am thinking I need to go with a minimum 5" lift to allow full turning and keep the front wheels from binding. Any recommendations for a certain lift kit? I searched a couple of sites but they don't seem to go back past 1994.

Thanks in advance for any help