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Re: head casting number

yep perty clean 291s there--toward the back on driverside between 6 and 8 intake valves on drivers side and 2 and 4 intake on pass side
 

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Re: head casting number

thanks they are 781 heads, any idea how to wake them up? ive heard getting the bowls cleaned and installing 2.19in and 1.88 ex valves would help but what else do i need to do?
 

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flow good -valves and porting work but very large cc so you need some slugs or angle milling to get compression there
 
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