Interesting discussion. Always trying to better our program...Do you have any pics of the raw pro stock stuff you referenced? Who's castings and what timeframe? Obviously we have what we have on these as far as water jacket and plug placement but we will investigate if performance does not come around or something weird happens.
At this point the one intake port takes about 365cc of liquid rubber to fill it...that is without the valve seat installed/machined. Not sure of the exact length of port but these are at least 1.2" longer than a Hi Port.
Exhaust ports look fairly good from here and fully expect them to work well with the intake ports.
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