Direct Connection ( Mullen LA ) heads
1BadColt sent initial flow tests against a set of ported speedmaster for comparison. The low lift flows look good. The W2 heads are indeed worth more up top after some extra machine cuts and porting. But still very impressive for the time. Plans are for some seat and guide work with 7mm stems and possibly larger valves if they prove beneficial and aren’t a risk for causing cracks.
1BadColt sent initial flow tests against a set of ported speedmaster for comparison. The low lift flows look good. The W2 heads are indeed worth more up top after some extra machine cuts and porting. But still very impressive for the time. Plans are for some seat and guide work with 7mm stems and possibly larger valves if they prove beneficial and aren’t a risk for causing cracks.