what is the best offset for an indy running a raer disc and is thirty five any good the rims are six wide cheers in advance rob

i think anything in the 30 to 40 et is ok
35 or 38 is the usual quoted offset for a sierra based kit

My sierra had orginal ET42. But as i'm using cortina uprights in front I presume that in front I should use ET19.

So what does the rest think?