Ya, ITB's aren't really a cheap way to go unless you can fabricate a manifold yourself. I was going to build something similar for my FC but then decided to go turbo. I was going to use some sort of motorcycle throttle bodies and make a manifold to mate to a S4 TII lower intake manifold. I ended up using all the cool bits I collected for that project to build the engine for my Rx-4. NA engines are interesting to play with. I'm still trying to tweak my Rx-4 to see what it's capable of. It's nice to know you won't kill an apex seal if it goes lean for a second.
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1976 Rx-4 hardtop. Half bridge 3B 13B, S5 NA rotors, Renesis e-shaft, stat gears, and bearings, balanced rotating assembly, RE dual weber 36 DCD's 203rwhp 137ft-lbs torque DGRR 2011 3rd place
1974 Rx-4 all original 27,000 miles
1988 Rx-7 TII 320rwhp. DGRR 2012 3rd place
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