Booster to firewall seal

[waynieZ]

I'm putting a Hydro boost on my 69 Camaro and I was wondering what you guys use for a seal between Booster bracket and the fire wall. I know on the factory booster there is a white plastic boot and I'm not sure if something goes behind that.
Any help would be great.
Thanks

[Musclerodz]

It bolts up solid, just need a light bead of sealant

[waynieZ]

Thanks Mike!