E50 tuning problems

Here's my setup . 50cc kstar .hiflo air filter, boss pipe 15 mm bing carb with a 70 main jet. The bike was bogging at top speed but I fixed that by rejetting to a 70. I am having this problem where I need the choke on to accelerate but I only can reach a top speed of about 30-35. I had to put the needle setting at 3 rd from the top because the thing that holds the main jet goes in a little bit more than it's suppose to cAusing it to be super lean and didn't not run when it was on the top notch of the needle. And have it lean bog and die on the second from the top. I'm not sure what I should do now after putting the needle 3rd from the top ,should I try raising the needle more or what?

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