318 combo help

you can get a close with math. figure the 278 is at .006, and you are on a 99 deg ICL
278 / 2 = 139 - 99 = 40 + 180 =220. 278 - 220 = 58 ivc

So with math you come up with 58 deg ivc. The KB calculator want you to add 15 deg to the .050 ivc from the cam card, so 44.5 +15 deg is 59.5 deg which is what I used in the calculator. so what number is correct? Dont really know unless you degree the cam and it probably wont be the same as what you get above.
now the xs282 deg properly has an IVC of 67. That w