When you start factoring in the high lifts from megacycle and factoring in the horrible blockage and turns in the exhaust port and address those areas,then the head become a power producing factor but yes it's the overall package.
As far as condemning products in the past, you'll have to refresh my memory cause I haven't been on this forum probably for close to two years and if you're referring to Mikes XS then yes alot of their products are garbage with absolutely no quality control.
I don't think I ever referred to the D on the head I'm working on as a record breaker and would be foolish implying that. What the D port did do on welded up combustion chamber was recover what CFM and Velocity I lost from shrouding the valves and this port shape was a blessing and a key factor which I have no
doubt would deliver great manageable power down low up to reline on an open chamber in street forum. I'm really contemplating installing 2mm over size intake just to see what this port is really capable of pulling.
I also apologize for mis judging you!
As far as condemning products in the past, you'll have to refresh my memory cause I haven't been on this forum probably for close to two years and if you're referring to Mikes XS then yes alot of their products are garbage with absolutely no quality control.
I don't think I ever referred to the D on the head I'm working on as a record breaker and would be foolish implying that. What the D port did do on welded up combustion chamber was recover what CFM and Velocity I lost from shrouding the valves and this port shape was a blessing and a key factor which I have no
doubt would deliver great manageable power down low up to reline on an open chamber in street forum. I'm really contemplating installing 2mm over size intake just to see what this port is really capable of pulling.
I also apologize for mis judging you!