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nicks diner · 01-29-2014, 08:52 AM

As I mentioned the hump heads where completely ported extensively. Does this make any difference to the compression ratio.?[/QUOTE]

Update Dart aluminium 210 brand new not ported. How do you feel bout those over the humps?
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01-29-2014, 08:52 AM	#17
nicks diner Registered User Join Date: Aug 2013 Location: Orlando fl Posts: 106	Re: 400/406 Builds As I mentioned the hump heads where completely ported extensively. Does this make any difference to the compression ratio.?[/QUOTE] Update Dart aluminium 210 brand new not ported. How do you feel bout those over the humps? .