340 Engine Shake

AAndrews said
Ok Plumcrazee70,

A few questions:

Forged or cast crank?

What harmonic balancer are you using?

Is the car an original 340 4-speed car?

Did you have the EFI on it previously?

What motor mounts are you using?

Forged crank
No. /6 auto car. Has 68-72 K member now
Neutral balancer (brand unknown)
New build never had anything but EFI
Rubber biscuit mounts that are new.