Granted, it's only a t25 on my setup, but this February will be 3 years 40k miles daily driven on the DE. The engine runs between 7-11 psi every day and other than no traction in 1st and 2nd- not one problem ever. As long as the compression checks out, timing is relaxed, colder plugs, and you have the fuel to compensate (Wideband AFR is a must IMO), you're good to go!