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0311htp Frugal09 Z

I was pleasantly surprised to see that there was no build up underneath the valve covers. The previous owners have evidently done well with regular oil changes.
1989 Pontiac Firebird Formula TPI Head Work - Rocking and Rolling

 I was pleasantly surprised to see that there was no build up underneath the valve covers. The previous owners have evidently done well with regular oil changes.  View Related Article

 

 

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