I use 3M beige two part automix for the seam across the firewall and the seam across the dash top front lip along with the tail pan seams, the trunk to rear glass filler panel, and the rain gutter edges, use a acid brush to tool it like original.
I use 3M black two part automix for the cowl "bags" to the door hinge panel, the seam across the toe boards to the main floor boards, the main floor to the trunk pan. . ALSO use a chip or acid brush to tool as original.