Roller Cam Madness
Well My initial thought was to use a smaller mechanical roller vs a LARGER roller. After hours of playing with Desktop Dyno and messing with the various configuratins to make it the best guess of parameters with all my combinations it seems the smaller cam would wind up into the 7000 RPM point pretty cleanly if put in a couple of degrees retarded. Well after some discussion with the QMP racing he advised that it would just be better to go for the larger cam and not move it around. Sold. So back to the drawing board. The next larger cam up the food chain was the one that I was originally going to run which instead of the advertised 6500 rpm limit, was a real 7000 limit. I ordered the 35-772 Comp Cams XR286 R-10 and now feel satisfied that I have reversed out a conservative decision. Will have to see how hot this cam is, I’m guessing not much more but in the Tiger it might be a bit on the large side, well then I guess mission acomplished. Anyone need a 35-771 XR280 Mechanical roller 
Just in case it was not clear these are MECHANICAL Rollers. Not the sissy hydraulic stuff. Just kidding, but yes I don’t run hydraulic cams as I’m a hard core over-rever and no reason to have a cam that doesn’t turn past 7000 rpm especially in a short stroke SBF.
One interesting thing I found out about these cams is they are not billet roller like the racing versions. They are a iron castings or some such thing and don’t require a bronze gear. Are these any less durable then the billet cams? Well I’ll bet they are just due to the cost, but for the Tiger it should work well.
Roller cam in and engine done at the builder. The motor made @#$ hp at 7200 rpm. And a in the 450 range for torque. I will have the dyno sheet shortly but suffice to say that the motor made good power and in the RPM band that I was looking for. The Flat top pistons and good heads seems to be a reasonable combination. The motor ended up only getting the dyno treatment with a DamBest Carb as I didn’t have enough time to get the TWM injecton set up. Oh well made more power then I expected and this is a 10.25:1 motor. Go figure.