Ok, here's a start. Vantage has a CF extended chassis coming out soon (not sure when I know proto's are out there). The CF chassis do have a weak point and you need to either manufacture a brace or buy the qconcepts brace that goes under the engine. There's another ext chassis out there but it's aluminum, and I think they are back ordered. Go with the RPM arms and axle carriers, you won't be sorry, but I'd definitely stay away from aluminum here. Get either the OS .18 TM or TZ, either mill is great, anything else is overkill in the Revo. Traxxas has some extended rear arms coming out that will allow you to adjust the wheel base up to 1", might be worth looking into, especially if you go with an extended chassis. Forget the aluminum or Ti rockers, I just don't get the reasoning behind them except for bling. I've never seen or heard of anyone trashing the stock (composite?) rockers. Also in the rocker department, you'll want P2's for racing. Also ditch the Integy shocks, just more bling and you'll probably spend a lot of time rebuilding 'em, they are another thing I see that serves no racing purpose. If you want to invest in shocks get the Traxxas Ti coated shafts and the hard ano'd shells. FOC in the tranny is the only way to go (reverse sucks and the gear is weak anyway), you will not need an optidrive. Also close ratio gear set if you are running a somewhat smaller track that you don't need a whole lot of top end, though you don't lose much anyway using the CRG. Do all the "free mods" Slaydaddy mods, I posted the link once before, I'll dig and find it again. HD servo saver spring. Fuel tank size limitations an issue (ROAR)? If not Trinity Spider tank, it's 175cc. You'll have to mod the radio/battery box or go with the Extreme racing CF setup and something like an RC10GT rx box or TMaxx box. I've heard of the aerosticks, but the only guy that pumped 'em up on another board was affiliated with the company somehow. I personally (have) would go with Lunsford Ti pushrods and Traxxas Tubez for the toelinks/steering links. Response Tires on Hurricane wheels. If you want loud, Trinity pipe or the new Traxxas tuned pipe. Performancewise you'll get some more bottome end which doesn't seem possible but is. Tekno RC throttle servo mount is a must. I have the wing mount also, it seems really nice and is very easy to install, I just haven't mounted and run it yet since I had my rear body mounts modded with a GS Storm wing mount. Loose the bumpers, if your racing you won't need em and if you mod the rear end for a wing (GS Storm or Mugen wing stay) you probably won't be able to use the rear. RD Racing Quick Turn drive shaft, gotta have it, it's just plain awesome, IMO. When you order it from them, might as well order the OS 18 backplate kit and a starter box from them as well. On top of that you'll need a 40mm flywheel for the starter box. Use the box and you'll never, ever have the headache of a OWB again. I'll try and think of some more and post it. Fire away with any ?'s