I have purchased a refurbed polished and ported head with Newman cam ported inlet manifold, 4-1 exhaust manifold to fit on to existing cat back exhaust with sports cat. I am struggling to find someone to do the engine work, I don’t have the time or confidence myself, I am based in the midlands. Any ideas? Also looking for guidance on ecu so can get it custom mapped, I gather the standard ecu needs changing for an aftermarket. I would appreciate any thoughts or suggestions... apart from get a 16v or vr6... I love my 8v and won’t be parting with it... Thanks in advance