So is race gas mixed in every tank, then.
And if you have to choke the timing she will become a dog.
The 167s have a compression distance of 1.810. Any other flat-top with at least that much, to perhaps 1.930 would be good.
Again, if it was mine, I would try very hard to keep the Q out of the .050 to .080 zone. And try very hard to get it into the .035 to .045 zone.
Just so you know, I adjusted my 367 to .039Q, and with a Hughes 270/276/110/53overlap cam (223/
[email protected]) and a final drive ratio of 1.97, she returned 32mpg,point-to-point, traveling at speeds between 65 and 85; for 600 miles.