Sometimes, I take timing out electronically with my dash-mounted delay-box, to idle my 276/286/110 cam right down to 550/500, to hear the lope.Cuz you know, at 1000 it wouldn't have any, lol.
But at 11/1 Scr it sounds sorta like yours but at half-speed, lol.
She only has 61* of overlap, but in at 108, the Ica is 66*; so
Sing it with me;
buh----bup---up----buh----bup---up---bup-bup--
--buh----bup---up----buh----bup---up---bup-bup--
--buh----bup---up----buh----bup---up---bup-bup--
about the only reason it is able to idle so slow is cuz I left the factory heavy flywheel on it, rebalanced of course.
or in your case;
cha-chop-up-cha-chop-up,up-chop-
cha-chop-up-cha-chop-up,up-chop-
cha-chop-up-cha-chop-up,up-chop-
lol
