In a word.... YES. There may be a minor difference in the timing from 65 to
67. Maybe 2 or 4 degrees at the most and mostly it was for rudimentary
attempts at emission control..
I'd set it based on what info you have available and you'll probably be just
fine. If it seems just a touch sluggish then add a couple of degrees more
timing and see if it helps. Most it would want is about 8 degrees when you
check initial timing at idle.
Off the top of my head: Plugs, AC45 - gap .032, point dwell angle 28 - 32
degrees ( set them at 28 for best idle and results ), timing 4 to 6 BTDC
with vac advance disconnected. Hot idle speed 600 in N for std trans, 650
in D for Pglide. Firing order is clockwise 1-8-4-3-6-5-7-2, 1-3-5-7 on
drivers side, 2-4-6-8 on pass side, all are front to back. Valve adjustment
is 1 additional turn down after zero lash ( when it just stops clicking ).
The 283 except for some late 50's and very early 60's hi perf versions are
all pretty much the same internally and for tune up work.
Hope this is some help.
"Opportunities are spawned from crisis"
I have been looking for a repair manual for a 1965 Chevy Pickup with a 283
engine. Can't find one so I bought one for as early as 1967. Is the firing
order and dist. cap rotation pattern the same on both years. Also the dwell