who here has had head work done? like porting and polishing? if i got this done would i notice any difference or would i have to port my manifolds somehow as well? i am after prices for a port and polish, so anyone who has done it here please shed some light. thanks mick ps. rb30e head

it would b best 2 port ur manifold too otherwise there'll b a step and it'll probably cause the car to run a little rough cause of turbulance, but it might not, but ur better of porting the manifold too