4A-GE engine mix - question

[Bean]

Ok, so your dynamic stroke using the figures above 76° (this only applies if you time it at 106°) is *drumroll* 53.67mm (53.673989256 to be exact )

using that info in the CR calculator gives not much joy to be honest. You would need to use race fuel for sure and try to get engine temps as low as you can.
Going from the following givens:
Dome CC = 5.9; Deck height = 0.4 (this might be different and only you can tell/measure what it is exactly with the Wisecos); HG bore = 82mm (most are); Dynamic stroke = 53.67mm
this will result in the following combos:
[code:1:c3348415d2][Head CC;HG thickness] = DCR
[32;0.8] = 9.64 [32;1.0] = 9.36 [32;1.2] = 9.11
[33;0.8] = 9.38 [33;1.0] = 9.12 [33;1.2] = 8.88
[34;0.8] = 9.10 [34;1.0] = 8.90 [34;1.2] = 8.67
[35;0.8] = 8.90 [35;1.0] = 8.68 [35;1.2] = 8.46
[/code:1:c3348415d2]
I'm not sure how much you can increase the head CC (oldeskewltoy might) without taking too much off the squish shoulders.
Personally I would go for the [35;0.8] combo if possible as this has 1.2mm squish which is ok-ish and use fuel as close to race fuel as you can (min. 100) and fit a big ass radiator and oil cooler (with good ducting to force as much air through it as you can). If you still need to get valves get some dished (like the Supertech) ones as I think in your case every little increase helps

looking at those figures I'm glad my head is a virgin and has 37cc after porting (thanks Dan )