Stockish 340 upgrades, cam needed

Wyrmrider Said:
heck with 9:1 I might go 108 to get the intake closed earlier but would also depend on how much spread
With 10.5 I might go 114 like momma mopar did in the first place - that would cut the pressure

OK i redid the math with his spec's
65cc head
11.60cc head gasket (.053")
7.5 cc piston below deck(yes i now its above deck)

84.10 X(4.08" bore)709.15 Divided by 84.10= 9.43:1
9.43:1

The only variable to this is......
1- i didn't figure in the cc between the top of the piston down to the top ring on the piston.
2-We are still assuming the 65cc combustion chamber????????????????
Once that is physically checked. we can make a hard num

so i would say its a lot closer to 9.5:1 then 10.5:1