Small roots blower for smallblock

Want to sell the bottom 6 rib pulley? Mine has a couple teeth knocked out of it. Whatever this thing does, its going to do. It is strictly a fun driver. Though I will def. take it to the track and see what she will do.

Question for everybody running similar combo's, when you type your combination into this calculator: http://performancetrends.com/Calcul...-Calculator/Supercharger-Boost-Calculator.php Do you get crazy boost numbers like it is purposing mine will make? is it just wrong?