Cam Q-extreme energy vs. powermax vs.energizer
 

I'm looking into buying components for future mods to my street driven 350. I already have a holley 650 dp, accel dist, edelbrock performer manifold (may evetually be replaced by RPM), full 3" exhaust, and SLP 1 5/8" headers are on the way (thanx spohn). Now on to the fun parts, cam and heads. I've decided on the trick flow 23* heads, but the cam is driving me nuts trying to decide. I've heard great things about both Comp and Crane cams, and have narrowed it down to either Comp XE 268, Crane powermax 272, or Crane energizer 272. I'm leaning toward the Comp for the extra int. lift, but the 110* LSA concerns me and my power brakes, will i have a problem there? Next in line is the powermax, it has a bit wider LSA (i believe) but would i lose much HP or torque? I don't know much about the Energizer, so any info would help. I'm not sure about the single pattern cam on a car with full exhaust.
Sorry for all the questions, but i really don't want to make a bad choice. I appreciate any opinions or experience you may have with these cams. Thanx.

my choice would be the comp cam. you shouldn't have any problems with your power brakes.

Neither of these cams will cause problems with power
brakes. Don't let the tini tiny variences in lift sway ya.
Anything .450" and over, will more than do the job.
The duration and timing points are much more important. My choice would be the Crane Powermax H278-2 for your
build up. specs are 278/290 222/234@.050 .467/.494" lift
on 114 deg centers. Jump up to the performer RPM, its worth it.;)

I have seen adds for "vacume storage" canisters, not sure how well if at all, the work, but they advertise being able to run more "radical" cams without worries of stalling, even with power brakes in traffic. Sounds great, I doubt they could sell for much more then $20. Judging by what people in here are saying though, this shouldn't even be an issue, but if you are really worried I suppose this could help put worries at ease :)
Corry