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hello, I'm trying to find the port volumes chart and piston rod weights for stockers. I've looked at NHRA site, can't seem to find them. maybe I over looked it?

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Have you tried Dwight Southerlands "What class does this run"?
That's where I found them for my combination.
Great site.
Pete

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The best place to find that and a whole lot more info is Dwight Southerland's site, http://www.classracerinfo.com

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You may have to contact NHRA tech dept. Even combo's that have been running and setting records for years, do not have the port volumes listed in the engine blueprint guide. Dwight does a fantastic job, but is still at the mercy of what information is available. Once the info is pulled by NHRA tech, it is updated quickly. If you email Danny he will get you the needed information quickly and also send you the information.

Sean

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OR.....

You can use this link to the NHRA that has the info that you want...

http://www.nhra.com/userfiles/file/N...edProducts.pdf

Bob