getting ready to start my rebuild and been advised different things by different people!

basicly i have a 200 block that is wire rung i've been told best to have these removed and the block decked is this right?

now i'm taking the pistons out to have valve cut outs and if the block is decked these will need doing aswell, been told i should have the cut outs done as i'll be running bd14 ex and safer to do so

also been told if big end shells aren't scored re-use them as this will save the run in process! just think that all the trouble i'm going to should i change them? or is this a done thing ie if its not broke dont fix it!

any in put would really help