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rx7carl · 03-06-2008, 10:13 PM

Shrouded spark plug holes and lack of thermal reactor ports in the exhaust housing suggest its a later model, 83-85 IIRC.

Are you planning on porting them? Only remove the sleeve if your going for a really aggressive porting (race only).

03-06-2008, 10:13 PM	#2
rx7carl Rotary Fan in Training Join Date: Mar 2008 Location: Orlando, Fl Posts: 59 Rep Power: 18	Shrouded spark plug holes and lack of thermal reactor ports in the exhaust housing suggest its a later model, 83-85 IIRC. Are you planning on porting them? Only remove the sleeve if your going for a really aggressive porting (race only). __________________ www.pbandjracing.com