Im running CP VE pistons 86 bore. 9.0 compression, Tomei headgasket 1.5mm. Cylinder and piston looks fine to me. Are the valve seats changeable for VE head? I dont think the valve seats look good. Attached are images for piston and cylinder and valve seat. This should be a burnt valve?
https://ibb.co/nnJ2p5
https://ibb.co/dbNTU5
https://ibb.co/niktwk