7age use TVIS ?

[sun_moon]

ok if i were to put a bigport head on a 7afe block with smallport pistons and bigport cams, the compression would be nice and high due to an increase in combustion chamber volume as well as the smallport pistons in there. good good.

now my question is, due to almost 200cc extra capacity and also such high comp... should you run TVIS, as it would still help with port velocity ?? or is it not needed, as in could it be a restriction ??

would like more info on this, especially from SAMQ