Seattle Active Power GT40 - A Father/Son build

Did you have to run a spacer with the wheels the car was delivered with to use Wilwoods?
I have same setup,yes need spacers for wilwood setup.3/4 hub extenders in front,1/4 spacers in rear.the front actually looks much better with the wheel placement with them IMO.
When you say "hub extender", you mean "spacer"...correct?
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I'll probably install longer ARP wheel studs, which should allow for regular spacers front and rear. Wheel choice is still up in the air. I'm waiting to hear back from ET.