Indy X-head ID

DentalDart said

Would it be worth it to switch over though, are indy heads really a step up from x heads, if neither are ported or cnc'd

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Indy MAX heads are decades younger, better made and flow better by a good margin. Go to the Race section and check out the head flow chart by TurboGLH. It's the LAX heads listed there
but they should be very close to MAX.