Whoops, where did that bolt go?

[Yukon Jack]

I was removing a very stuck on carb off the 70 K5. I stupidly left the four bolts used to attach the carb to the intake on the top edge of the carb. I had to use pretty good force to seperate the carb from the intake, when I did, one bolt fell into the intake but I was easily able to grab it - unfortunately, I can't find one of the other bolts. I have hooked up a shop vac with a flat piece of cardboard and placed it on the top of the intake carb area to make a good suction and have come up with nothing. I have looked around the floor and the engine compartment to try to locate the bolt but no luck. My memory is it sounded like a bolt went flying, but as one bolt definitely went in the intake the other one could have also.

Any suggestions before I go to the hassel of pulling the intake?