Throttle Blade Gap
Throttle Blade Gap 
That doesn't look like too much gap to me. If anything, not enough but you will find out once you start it up. I guess those are designed to have a gap around the perimeter for idle flow as opposed to having a hole or a gap just at the bottom of the blade.
That's good to hear. I've been running it for about a month but have been tracing down a low iac count problem. I thought I narrowed it down to a vacuum leak, but can't find one. I can close the tb all the way as in the pic and it has no affect on idle. It still idles around 900 rpm. I am putting the engine back together and thought I would check the tb blade gap while I had it off.
I have a stock ported and polished with the same amount of gap around the blade. When we installed mine I guess since there was a gap the air was getting by it while it was just at an idle and it would idle at like 2500rpm then slowly drop to normal after about 10 seconds. They told me mine would need a tune for it but if yours is not idling high you should be fine.
