Let's drop by the Fukuda house for a bit.

Literal

Fukuda-san [possessive-の] house [direction-へ] briefly stop-by go-[volitional-しよう].

ちょっとよって行こう — 寄る (to stop by) + ていく (going on from there) in volitional form. ちょっと means 'briefly/for a bit.' A casual invitation.