I was in the machine shop last night, the guys were putting the inner springs back on after break-in. They bolted it back together and made a pull from 4000 to 7000. It made 458hp @5400 and 576 lb-ft @4100. With no tune. When i asked these are the specs i got. Hughes 4.180 stroker kit in a .040 over 360. 10.14:1 static with box stock eddy heads, comp flat tappet .552 int. .562 ex. 1.5 rocker. .243 int. .247 ex. @.050 air gap 750 vac sec. 34 degrees total. It idled well at 800 rpm. And sounded great!