I know...oh ask me ...i know...
What I do to get all my j bolts in a row is this.
Dig all your holes in your line with a string.
By a 2 x 4 the length of the beam. Or connect 2.
Drill your holes where the j bolts will go in each peir while the 2 by is over each peir along your line.
Install each j bolt in a hole to hold it in place as the concrete dries.
Now the j bolt is 1-1/2 inches over the concrete, and they are all in line for your beam.
I buy a PT 2 x and use it for blocking if I need any in the framing.