the best think for anyone to do is find out everything you can about port timings,shapes,aim,width(size)so it all works together to do what you want especialy have the right pipe for your plans with exhaust port timing and blowdown.the cutting part isnt that difficult if you take your time but the tools can get expensive.dont just cut your ports because one guy told you it will be fast,accumulate everything and decide if you think it will work for YOU
i think covered enough to give someone an idea