McClelland used a .007-second reaction time with a 9.924 at 149.22 mph on the 9.90 index to defeat Phil Unruh’s .026 with a breakout 9.899 at 159.29. It was a close race decided by just .003-second that sent Kyle Rizzoli and his SS/CA 1969 Camaro to the Super Stock winner’s circle in Pomona. Both Rizzoli (.010-second) and GT/IA ’92 Cutlass driver Adam Emmer (.022) hit the mark at the tree, but it was Rizzoli who went on to score his sixth national event win with a 9.579 (9.56) at 133.55 to a 10.120 (10.11), 125.89.
Upgrading the camshaft will require the matching valve springs. Titanium retainers are also recommended. They will reduce the valve weight and prevent valve float. The trunnion bearings in the stock rocker arms are a known weak point. We strongly recommend a trunnion upgrade kit. Swapping in a set of full roller rockers is another option.
The factory heads are based on the LS3 heads. However, they have a flow vane in the intake port. This helps emissions and idle stability, but reduces flow. CNC porting the heads is common. This removes the vane and improves airflow by about 70 cfm. Aftermarket cylinder heads are another option. These heads will flow even better than ported stock heads and have thicker deck surfaces to withstand more boost.
Larger-capacity aftermarket fuel rails are also at risk for these issues, especially in boosted applications where an underhood turbo or supercharger is creating more heat for the rails and the fuel inside them to absorb. Seeing the problem at hand, Heatshield Products developed its FR Shields™ to combat this issue by wrapping the fuel rails in a deflective thermal barrier that keeps radiated heat from soaking into the rails (whether they be aluminum or other alloy) and heating the fuel inside the rails.