I need to increase the needle jet size on my PHBH to a 300, does anyone know who stocks them? Alternatively, is it possible to drill them out and if so, what size drill would equate to a 300? The 200 in there now looks to be around 2mm
wouldnt drill one out the needle an valve seat come as a pair; larger needle for larger valve seat; only know because i just put one in my phbh from mb,