Never used the 071, so would not like to say.
My advice is change the coil first, you will not beleive the performance increase, especially low down.
I get most of my stuff where I can from MATT LEWIS 01922 692424.
I am using MAGNECOR leads, AGPR12PP8, group a coil, the coil made a world of difference, if anyone had told me how much difference I would not have believed them.
tabetha