I’m not sure J par when the “direct connection” logo came out. My memory says that was a late 70’s early 80’s program.
The car is a 66’ so I’m sticking with a later 60’s theme like if the car was built up say circa 1970. The blue is just because the car is silver and red. A red engine was too much red and the engine I built was a 74’- 318. - keeping period correct to that time frame. A lot changed in the automotive word mid 70’s. Again not an exact science but when I open the hood she got that early 70’s vibe.