I keep losing heads up with this scenario

[dmoney]

Im playing good aggressive game.

Say its about even usually heads up in a SnG. I find i bust out quite often when this same situation arises.

EX.

I raise 4x BB preflop with 10,7. Flop comes 8,9,10

I bet out about the size of the pot. he raises me all in.

I usually call cause i have a fair # of outs.
I have a pair with an open ended straight draw.

At the time im like. ok my outs are most likely FOUR 6s. THREE 7s, TWO 10s and FOUR Js.

13 out of 47

Turned out I had FOUR 6s. THREE 7s, and FOUR Js.
11 out of 47 outs.

the pot odds were close to 3:1

12k in already, 3k more to call.

he flips up 8,10.

I lose.

Do I give to much weight to open ended straight draws. Should i check here? Or fold to an all in raise?

The player is pretty strong. but wouldnt be adverse to reraising with top pair good kicker.

so im sure im beat at this point but i know i have some outs.

Did i overplay it?
Thoughts.

And NO u dont need to know the size of hte blinds here cause it is inconsecquential.