Thread: 69 400 YT upgrade...need some thoughts on hp/torque #'s when done...
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Old 01-29-2022, 07:35 PM
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vertigto vertigto is offline
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Originally Posted by ScumOne View Post
@vertigto: Do you know what # stock heads you had for this dyno pull? Our timing is the same as well.

Thanks for posting!

Jim
Stock #13s, but with roller tip rockers. DUI distributor.

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1970 GTO (Granada Gold) - 400 / TH400
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