DCR numbers

Yup. plus, different grinders use different places (in terms of lift) as the actual closing point, and have different rates of take up andd closing speed. KBs calculator avoids this by simply saying "add 15°". I've found that being pretty close. Whose cam are you playing with?

its the erson solid flat in my slant... i think my springs are gone and was thinking if i have to pull it to change i might as well get a final comp increase...

but here are the specs...

3.480 bore
4.125 stroke
6.7 rod
static is 10:1
IVC @ .050 is 51 and seat to seat is 67
no boost
2K elevation

all we have is junk 91 so i need to be able to street drive it even though i have 100octane leaded in it most the time... so i want at least an 8:1 if not 8.4