My friend has a recently built RB stroker 505 that has an Indy timing cover, an ATI super damper, and a new double V groove March aluminum crank pulley. The crank belt grooves are about 1/4” farther out than the water pump groove. We used the correct Indy crank spacer as well as the correct Indy water pump housing spacers. The ATI damper is the one specified for Indy cover or Jesel belt dtive.
Anyone here run this same setup with pulleys aligning correctly? If so, what waterpump pulley are you using and is your March crank pulley same dimension as a stock one?

Thanks

The ATI damper puts the pulley further out than a stock damper so you need a shorter pulley. The Doty pulley is what most people use with the ATI damper. Or you can use a Hemi pulley and then shim it as needed.