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Discussion Starter #1
oops! can the moderators please move this to the discussion threads I accidentally posted this in the wrong section.
 

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Contributing Sr Motorhead
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Well,...

GT40s have 64cc chambers, Ps have 58cc chambers.

Ps have a revised spark plug location and angle so aftermarket headers may or may not fit.
 

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and the p's out flow the std gt40's
 
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