588" nitrous deal with lots of quench & softened chambers along with lower compression...900" 55mm nitrous cam,Etc,Etc !!

Made 1100ish and was strong thru out the rpm band...My engine guy who is a NHRA comp elimator record holder and many time national & divisional winner was very happy as he felt we are leaving around 150hp on the table being a built for nitrous !!

We race a Limited jet 275 radial class and should be around 4.60-4.70 range with a .040 jet @ 3250#