2.8l V6 with a 20 valve? Right now the 2.8l V6 has 12 valve so you either go 24 valve (4 valve/cyl) or 30 valve (5 valve/cyl) total. You are gonna have a real funky engine with 20 valve in the 2.8l V6 (3.33 valve/cyl or some cyl with 4 valve, some with 2 valve) I believe the 30 valve V6 is the future Audi A4 engine Pram S4 88 323 GTX 92 S4 96 993 turbo