I'm pretty happy for having only $825 cash invested into it and a bunch of parts from 5 different motors. I could feel the difference having the heads ported/polished with larger valves+ the roller cam and the bottom end being balanced too. Still has good oil pressure unlike the last couple motors I had in it. Runs good at high rpms, is pretty quick to rev up, but idles down and just crawls around and has plenty of low rpm torque. And drove great down the freeway, didnt miss a beat.