"no idea"

This is going to sound strange but I have not got a clue as to what my car may turn in the quarter, any help judging would be appreciated. Here's what I got.......74 swinger,tubbed,31 x 18.5,4.88 on a spool in a 60,727 manual valve body,4500 stall,340 .20 over,ross 10.5s,eagle rods,factory steel crank done up,edlebrock aluminum heads,603/604 272/268 @ 50 solid roller,mp1 single plane,holley 750 double pumper annular discharge,1 3/4" hooker super comps,3" exhaust through delta 40 mufflers,,,,,,,,,oh and car weighs 3150 w/ driver,,,,,,,,help