I'm getting ready to build the engine for my 63 Chevy II sedan gasser.  Here is the plan let me know if it is a good one
Block stock 4 bolt main stock forged crank
Heads Trick Flow 23*
cam Comp Cams Xtreme Energy 268*
Rockers 1.6 Roller
Intake/carbs Edelbrock Dual Quad RPM air gap, twin 500cfm
Tranny Th350 with 3000Stall speed converter
Rearend 8.0" 10 bolt with 4.10
Tires 28x12.50 Drag radials
I'd like to get close to 400 hp at the crank, how that sound???  

Not enough cam for the gears and converter stall.

Bogie

Remember this is a 100 series sedan, that has been gutted, will have a 10pt cage and ladderbars, the curb weight will be at most 2700#, it left the factory @2550# with the 194 and a powerglide there for the converer should stall lower than the 3000rpm listed. if the 268 is too small then how big of acam to run theese gears, tires and converter????  

I you are looking for strickly performance, the regular Performer RPM dual plane intake would be a better match to a hydraulic cam than a tunnel ram. It does not look as itimidating though as a tunnel ram.

This is the intake I'll be using
http://www.jegs.com/images/photos/300/350/350-20254.jpg
not a standard tunnel ram  

Obviously this is a track car; the Comp XE 268 is really just a hot street cam. The competitive Lunati VooDoo is a more aggressive cam with the same duration if you want to stay with a street hydraulic.

Given your rear gearing, fairly loose conveter, and rather light chassis; you could add another 10 to 20 degrees to the cam timing and maybe tighten up the LSA to 106-108 degrees. But this and other decisions need to be based upon whether you're running to have fun or want to be a competitor.

Keep in mind that as cam timing goes longer and LSA shorter, you want to run the compression ratio up.

A "mild" cam with 1.6 rockers isn't the best choice to race with. It's easy to get confused with springs and components as to what the cam timing is at the lobe and the additional accelerations the 1.6 rocker imposes at the valve. These extra stresses are there and they act like you put a more aggressive cam in the engine on the structures of everything from the cam lobes to the valves. You can't fool Mother Nature by sticking 1.6 rockers in there, the ompf on the entire system is that of a more aggressive lobe profile within the duration constraint. This can smoke parts pretty fast. Roller trunions and roller tips on the rockers help as does bronze alloy guides and carefull alignment of the roller's sweep across the valve's stem tip. But in the longer haul, a longer duration cam for the lift you're shooting for might be the solution that deliver's more power for fewer broken parts. You should probably be thinking about 7/16s studs and a stud girdle if you're contemplating runs into 6000 plus RPMs, cause this stuff will start wobbling and then something breaks or a stud pulls out.

Your intake manifold choice is not what I'd expect on a competitive Gasser, a tunnel ram would be much more appropriate. Again it depends on whether this is a fun car or a competitive runner. Much of the car sounds like a real competitive racer, but the engine and to some extent the rear gears sound like a hot street car. I don't know what your doing with the TH350 or is it a Powerglide different responses seem to have different content. Either way the gear box needs to be "build" or it's just a short lived bomb next to your seat.

Bogie

This is going to be a street driven fun, fast car to drive.  The only raceing that I can fit into my work schedule is the weekly test n tune I want a mid 11 or faster car (Can't be the slowest car in the nova club) that I can drive on the street,but will not be driven everyday.  This will be my one and only "Race car"  that my wife will let me build, so I want to do it right the first time.  The manifold that I selected was I want to have duel carbs and still keep it street friendly.  Gearing ansd rear suspension is geard around racing.  Like I said earlier I want 400 hp at the crank, but must also keep somewhat friendl street manners, enought to get me to the track.
Thanks for the help.  

OK that explanes a lot. I'd go here and look at 60103, 60104, or 60105. These Holley, Lunati, VooDoo cams really work well with your gearing and converter selection.

Bogie

I'm likeing the 60104
Thanks for the help.