My 02 had 2 gaskets std I removed one which reduces the open duration making the ports open later so I wouldn't call that advanced. But the head mod is still required. If you get the squish close enough so it is working, the comm will be too high so it does need machining of the dome as well as a healthy skim.
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'07 EC300 GG
'14 TXT250 GG
'? 496 CPI Cheetah RZ/RGV hybrid
'22 765 Street Triple RS
'21 XTrainer
'69 Stinger T125 Suzuki
'23 TRS 250RR (it's a Trials thing)
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