B+ big valve head

[gitters27]

I'm wanting 150+ out of my c16se and it's looking like I will only achieve this with a big valve head,who still does this type of work that is known for good quality work and what on average does it cost?

[mowgli]

according to old posts on here, ivor searle (machining company from ely) have taken on doing blydenstein's work. i have no idea if it is true or not

[dgbnova#1]

There is engine builders who should be able to machine these for you

[gitters27]

Yeah I'm getting the head done at CAS engineering he knows his stuff