Super Jet Porting my 6m6 cylinder. Can someone give me the diameter of the 61x ports??

[kwakhead]

In going to be widening the exhaust ports on my 6m6 650 superjet. I want to make them the same width as a 701 61x top end exhaust ports. Can somebody measure the width and approx height if their 701 cylinder ports??

 

[kwakhead]

And yes I do realize the port timing on both are different. But I want an idea of how much I should widen it. No I'm too busy blowing money on other skis to buy a 701 top end lol. Plus the only real difference between the two is the port layout and sizes. The 50cc difference won't really make a big difference.