who runs 13sec to 12.80 in the 1/4

I would use these pictons over the Speed Pros. Not that the Speed pros are bad.

http://store.summitracing.com/partdetail.asp?CP=1&part=UEM-KB107030-8&N=700 0&Ntt=STL~H116CP30 or UEM~KB107030~8&Ntk=&rsview=sku&Ns=


Those Speed Pros have a lower compression distance so it will be lower compression. The KBs can be set at zero deck.