Actually my factory throttle body assembly is fairly small. I haven't measured nor is my memory great but I'd say it has dual 1.5" throttle plates...no crazy TB here.

Not really looking forward to messing around with different throttle designs. Only thing I even want to consider is individual throttle bodies off a sport bike connected to a shared plenum (think BMW S65 V8 ) and even then I have about 20 different things that will take an equal number of Benjamins that I want done first. Honestly half the reason isn't bragging rights or power, it would just be a lot easier to get to injectors, valve covers, etc. than the current plenum design

Only time throttle opening is a problem is from an absolute standstill (my grandfather could light the tires up on accident before I modified it) even then it's nothing major...I drive straight while torque steering in the rain...though I used to purposely turn on AC to limit that but I haven't had a serious problem with that in years....lack of ABS on the other hand has gotten my attention twice in the past year or two and again I have no plans to retrofit that either, too much added complexity.

Factory powerband is something like 182ft/lbs@2800rpm and 160hp@5500rpm. I really don't want to push too far on the autotragic transmission because it's a known failure point on even unmodified cars (seriously check craigslist, half of them are at least slipping). I think reasonably I can expect the tranny to survive at over 200hp (for a decent period of time, not forever) as long as I don't bump the low end up any more and focus on top end breathing rather than torque (and not downshift under throttle, which I'm better about than most normal drivers). I'd start working on the 5 speed swap today if I could find a damn junkyard with a loaded 5 speed car.

Traction is also in the process of being addressed. I've got wheel spacers coming in this week to allow me to go from my 15x6+35 stock wheels to 16x7.5+42 300ZX wheels which soon I'll be picking up some 225 width 300 treadwear tires (up from stock 205 @ 440TW). This does of course does bring up some concerns for my transmission but I've already cut some 2.0 60 foots (on 600TW tires!) so I should be okay taking it easy for a bit.

Also, found out my O2 gauge was wired wrong my friend INSISTED it was the green wire and I said we should check the FSM but he was determined that green was right. It turns out the green wire is for the O2 heater. I'm in the process of remedying that but my wire crimpers and all my good pliers have gone missing (it just figures). I was going to wire up a potentiometer to allow me to play with what the computer sees as far as coolant temps so I could richen the fuel mixture up as needed to race with but I'm to the point I'd rather just plug in a 30ohm resistor which would register as a 176F coolant temp and negate the warm up enrichment process and give me some more time to live with my questionable thermostat. Maybe if I really wanted to race rich I could just put a higher resistance resistor in, I still like the idea of adjustability because I've seen it done on a different car with the same engine but oh well.