Has any one else ported and polished 6A13TT heads before and if so what were the results.
Dave O
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Has any one else ported and polished 6A13TT heads before and if so what were the results.
Dave O
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Great job.....!!!!
Nice [emoji41] I did a 6a12 which is pretty much the same dynoed at 182 up from the factory 170 but wasn’t dynoed before so who knows