- plenum design; single or dual. Can you detail the pros and cons for each along with the different costs involved? I have a general idea of one vs the other, but a detailed discussion on the topic would likely be appreciated by many.- throttle body design; single or dual. Same as above - intake materials (cast/drawn/composite) What are the issues here? Cost of prodcution, heat transfer, aesthetics, durability etc? I don't care what it looks like if it performs better than stock and the gains can be cost justified. - level of mod required; bolt on to extensive. depends on the gains as to how extensive I'd be willing to get into the modification - lets not forget about the IAA, Brake, Clutch, and Vacuum galleries If it's functional, I'd be happy. My rps max clutch is stiff enuf as it is so I'd prefer to retain the clutch booster. - PVC on or off? Not happy with my current catch can situation right now so a system that will vent pressure and reroute oil to the pan is what I'd prefer.
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