As most folks are aware, AFR just released re-designed SBC heads and lots of folks are curious as to how they fare. Joe Sherman did a dyno test of the new AFR 195 heads on an 11:1 383 for Hot Rod magazine last month, and reported yesterday on another forum that he was impressed with the results. The engine was tested on his own dyno, on 91 pump fuel, and he said he "did not even get to tune it up." The highlights below: 383ci 11:1 compression 259° @ 0.050" roller cam, 106° LSA AFR 195 heads (new design - out of the box) 850 BG carb Super Victor intake 91 octane pump fuel 615 HP @ 6700 RPM, 528 lbs/ft torque @ 5200 RPM He didn't say what future issue this test will be in. Looks like the era of the affordable 600HP pump gas 383 has arrived. Just thought I'd share.