JE or Wiseco......

[mrnate400ex]

So, I am looking at putting a 426 kit in. What piston, a JE or a Wiseco?? Also, I know that 11:1 will run on pump gas. Will 12:1 run on a 50/50 blend of race and pump?? Will I notice that much difference??

[NacsMXer]

I would go with JE, their advertised compression ratios are more accurate than Wiseco. You can get by running pump gas with an 11:1 piston but it's sort of pushing it. With 12:1 you might be ok with a 50:50 mix, but it's not worth the potential risk IMO.