Balancing of stroker kits and vibrations

I'm missing the later years of 360's, but the crank doesn't look right?

Last time I had a vvibration, it was a 340 with a 360 converter......
I went to Firestone for balancing, twice, the car never left town for the
next 20 years, got a buddy to put in the 4 speed and he found it. maybe
I'll go back to Firestone now,