$3600 Would get you 300rwkw. Cams, Pushrods, Valves, Double row timing chain and over the radiator intake. that's with stock exhaust. 310wrkw with twin 2.5" cat back for extra $1500 (average price) 330rwrkw with 1 3/4" extractors to 3" high flow cats and 3" cat back $3000(average price) on top of the cams price. So with around $6600 would get you 330wrkw. Fastest cam only VE SS is GM Motorsport's VE SS Cam Only 10.87 @ 128 mph with drag tyres.
Jon