THS rules question on cyl heads

[Double-L]

have a question on allowed cylinder heads for ths. this maybe be a silly question but are the 6-bolt champion gn1 heads considered a stage 2 head? or are they legal since they are on a 109 engine? the written rules are a little vauge in the description. would like to participate in some ths races this year and just making sure im following the rule book. thanks in advance for the information

 

[11.20n1320]

You are good to go with those heads.
DDay

 

[Double-L]

Thanks

 

[Slow91z]

D-day is correct those are a production style heads with extra bolt holes, not a stage 2 style head which can't use a stock style intake or headers.