offset question not noob

[gsracer]

ok guys i recently sold my r34 gtr stocks that were 18*9 30 mm backspacing, they did not clear coilovers at all. The backs spacing with the 30 mm off set was 144.3 mm . i was gonna put some volks on them but i sold those too. Now im looking at some wheels made by work called the emotion cr kai.

I know the rears will work but the front are 18*8.5 with a 30 mm off set which would give you a backspacing 137.95mm now we have improved about 6.3 mm, will it clear teins or will i still need a 5 mm spacer at least. Any help is apreciated.