Let me elaborate:
Given the limp/call preflop UTG, I'm putting him on a mid-strength A (about like mine), a pocket pair, or two broadway cards. Against the latter two, my ace makes my hand as well as the flush. Against a bigger ace, my 8 makes my hand. So I'm granting 12 outs most of the time when he doesn't have a set or better here, occasionally with myself ahead of a broadway-based flush draw.

Occasionally, he can certainly have a straight or a flush, leaving me drawing to 9 or 7 outs. However I think those instances are balanced out by the times I'm ahead against broadway cards.

So again, against his likely holdings IMO, I believe I have 12 outs. Which makes me near even money. Which makes me want to play a big pot if I have good odds (I do) or good fold equity.