On the top set you can see the quite large wiring harness bracket in the middle which the 66's had. The 65's used the 3 little wiring harness tabs - 1 in the middle and the two outboard ones
Correct! The passenger side cover on the 65's only had the fold over tabs for the harness. The 66 cover had a metal heat guard as well as the fold over tabs for the harness and the vacuum advance hose to go through. The 67's of course had a pcv grommet.
