belt size question

[beyondredline]

I'm going to order a belt and just wanted to be sure that I'm getting the correct one.
I am going to run a Steeda 2.81" upper pulley and Steeda 100mm idler. Does a 74" belt sound good?

K080740 or K080740HD?

 

[FromGTtoSVT]

http://stangshiftergaskets.com/belt_length_chart.htm

 

[Oiljunkie]

That built guide is honestly spot on. I nailed my set up first try off of that chart, but it seems some ppl can't read it to save their life, or just can't add

 

[beyondredline]

Yeah, I saw that chart and that's what I went off. I also read on a few thread that people were going .5 higher because 74" was to tight.

Thanks, just wanted to be 100% before ordering.