hi i have a 400ex im doing the top end on. right now ive been searching trying to find out whats the best compression ratio to go with i have found 10.1 wiseco kits that come with gaskets but dont know there gasket thinkness to see what compression would end up being if i run honda xr400 gaskets instead. i also run 93octane and want to stay with it and dont want to change head studs.

i know stock is 9.1 so i want more than stock i want to be around 10.1-10.5 with engine done

quad was buring oil its stock bore now was gonna take bore to like 406 to stay close to stock bore as possible so i can get more rebuilds out of it.(still need to take jug to machine shop to see how out of round)

ive already got brand new hot cam stage 1,cam chain tensioner,oil pump,crf450 cam chain ,new valve seals.

i mostly ride trails, also quad already has wb e series, uni air fiter with pre filter,no box lid,spal fan, stock header with welds ground down.

i also am going to need to know what would be a good jetting also for this bulid after depending on compression choice im at 950ft elevation but some times ride where its 500ft elevation

thanks for the help