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PY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Pontiac - Race > Two More Engines Dyno Tested - Pleasing Results
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Old 02-15-2026, 04:14 PM
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ponjohn ponjohn is offline
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Great results.

What do you think the heads flowed on the 465?

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Old 02-15-2026, 05:20 PM
ChiefCrazyCanuck ChiefCrazyCanuck is offline
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Originally Posted by ponjohn View Post
Great results.

What do you think the heads flowed on the 465?
Good question! 336 at .500 and flat from there on up. That flow level at a moderate valve lift without a gigantic port all add up.

The bigger intake valve (2.200), and the port work/valve job, contributed to the extra power output I am sure vs. the engines I had tested earlier. There were many great takeaways from these builds.

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