Here is the design I run.


9.6:1 350
271/284 @ .006
215/224 @ .050
.578/.578" w/1.7 rocker
110 LSA
106 ICL

Idle = 24* BTDC @ 750 rpm

WOT
12* @ 800
16* @ 1,200
20* @ 2,000
24* @ 2,400
28* @ 3,000
32* @ 3,600-6,500

Cruise timing is up to 48* BTDC @ 3,000 rpm and 40 KPA MAP.

WOT air/fuel ratio is 12.5:1 near peak torque and leans out to 13.2:1 at higher rpm

Cruise air/fuel ratio is stoichiometric or up to 16.5:1 in highway lean cruise.