Soliciting feedback/comments on HEADs

Martin D

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Dec 17, 2000
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So I have a question. Does ANYONE out there have dyno numbers on the new JM cylinder Heads?? (excluding the ones on his site)

Here is my dilema. I currently have a set of H.M. S. heads that are flowing 285@600. My car consistently makes 630-650 RWHP on motor with those heads. Now, I am trying to justify a $7500 purchase - but what will be my gain? If I am not going to pick up at least 50 more RWHP then why spend the money. Right??

Your coments, opinions and real world data are greatly appreciated!

Regards,
 
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