Here are a couple I've done using TWM throttle bodies. We're also a dealer for severial electronic systems. FAST, Accel DFI, AEM, & Motec to name a few.
I would say yes, around 8 to 10K. You need the intake manifold, throttle bodies, injectors, fuel system, ECU, sensors, harness, then dyno time and tunning.
But it sure look good.
