7000 plus rpm. Basically what my tie bar does is marry the exhaust rockershaft to the intake rockershaft. At high rpm when using OEM equipment, I've seen the factory exhaust rockershaft stantion's fail/crack or break from the bad exhaust pushrod angle in the G3 Hemi. From being a backyard garage shop G3 Hemi engine builder, I'm glad some folk's like the rocker tie's that I engineered and designed....like Keith Lynch, Barton, Teuton, Lofgren.
