true the car do's run just a bit more ruff but I myself realy dont mind it....but a ACG will help put it back a hair, it will be out by about 1/2 a tooth or so....and if you deside to do any P&P work or oversized valve
s you want to look into uping your fuel supply a bit
but anyway keep us uptodate I alway's like to see head work done to the VX it's an interesting head it has smaller valve's but the chamber fill make's up for it the flow of the VX head is a bit slower but I but still a very intersting head to build
art