who to buy rhs heads from

If you are going to compare products from hughes and what Brian offers, make sure you are comparing apples... The hughes super prepped ~1400, IIRC, which do not include springs/retainers are more in line with what Brian offers which comes with springs.
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This is true, i was just going off an OOTB head, but ready to bolt-on with any currections that need to be made already done, don't know if Brian offers something like this, I myself was more then pleased with my stock RHS heads & there performance.