alright, now... his car has the stock 240sx cluster and it's reading 6500 rpm @ 95 mph in 5th gear.. is that cuz the cluster isn't swapped out? if it's reading that right now what should i tell him not go go past RPM wise?StricNyne wrote:its actually 6800 but safely on stock valve train 8k which is where i am gunna be doing i wouldnt go past 8400 cuz of issue with hydro lifters and then again i got a little worried and opted to use tomei valve springs