"That's what the Kinsey scale is for."
-No, it's not. The Kinsey scale is a rough tool. Some people are exclusively gay or exclusively straight and many (all those 2-5) are bisexuals.
" I am probably 70% gay, 30% straight"
-So you're bisexual with a preference for men, neither gay or straight.
"Personally I think nobody is a 100% one sexuality. I think everyone is a combination of homosexual and heterosexual. "
-False.
" So my question is, is there anything wrong with identifying as gay?"
-Identify as what you want, but you're bisexual, not gay.
"However, I do not wish to identify as bisexual because it's only occasionally where I will have attractions for women."
-So what? You're still bisexual.
"I mostly rather identify as gay because a lot of people don't believe in bisexuality. I kind of don't believe in it either. No matter what they say, I feel that you are either gay or straight."\
Wow, way to contradict yourself ""Personally I think nobody is a 100% one sexuality. I think everyone is a combination of homosexual and heterosexual. "". And you say you don't believe in bisexuality, but you are attracted to both guys and girls. My god! You're bisexual.