3:55 gears to 323 gears

69DodgeMan said

I curve my distributors for about 15-18 initial timing at 800 rpm, with mechanical going to about 34-36 at 2000-2200 rpm and finally at 54-56 degrees total advance with the Vacuum advance hooked up for cruising speeds. My cars all perform very well like this for street cars.

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For an automatic; I'm with you on this.

except with a 4 speed car;
For these,I delay the all-in to 3000 to 3400, depending on the cylinder pressure.
54 to 56 is a pretty good cruise-timing number.
But the full-timing so early in a hi-compression manual trans car, gets too jumpy for me in first gear,with numbers that high.
Conversely; with a dead cold engine, at say @68*F, she likes a lotta idle timing, like 22/25 . it seems to take a lotta lotta time to heat all that aluminum up.