i just got some 10.2mm wires for my mark and want to know if i need bigger wire looms to hold them in place or if the stock ones will work?

Should be able to use the stockers. I have ones that will fit up to half inch wires, if you can't use yours. If you want them hit me up.

kk thanks i will let you know if the stock ones dont workout.

I don't know the my 9mm don't fit well in the stock looms ... I purhcased some Ford Racing Looms

My 9mm ford wires fit in the stock looms. I squeezed'em good though. I have been told 8.8 was max though.

I'm running Taylor wires that are 10.4mm with Taylor clamp style seperators (I used almost 2 complete sets for my layout.) I modified two 4-wire ones for the alternator bracket to hold them directly to it. I also modified the stock rubber seperator that goes into the valve cover cover as they wouldn't fit otherwise. If you search around here I think I put up a pic of them a while back, I know it's not on my computer here as I had a hdd die a lil while back...