bad draw odds

[Proudpapa34]

Kind of a fishing question.What is your odds of making either a flush or a straight with a 3 card running st8 and a 3 card flush on the flop.I'm almost certain the backdoor flush is 23 to 1 how much would you improve with the 3 card runnning st8 draw?

[DarrenX]

I'm no probability genius, but I'd go with improvement to approx 1~12, since you'd have 2 draws w/approx the same odds...