cam question

You mighta missed the point;
You could probably find IDK 10 different 227* cams with 10 Different advertised specs and they may run from poor to gangbuster in your engine. And the lower your Compression ratio is the softer they can be out of the gate. You have to be really careful if you have a low-C 318, there is almost no room for error and then you get a soft combo. The 3000 is a step in the right direction; but this changes with torque input, so if you have a 3000TC spec'ed for a 10/1 engine, it may not be a 3000 in an 8/1 engine. It all depends on how much cylinder pressure the engine makes. Nevertheless, a 3000, whatever it is, will probably allow a decent hi-rpm cam.
The problem is the 3.23s
If you plan on keeping them, then say you had that 227/234/112@.050 cam, that might power peak at around 5300rpm. With 27" tires this is gonna be around 50 plus mph. So if the bottom end is soft (because the late-closing intake fails to trap the mixture because it doesn't close until the piston is nearly half way back to the top), and it doesn't spin, then it's gonna be a long, long time before you get to the power. With such a late closing intake, the engine will be in reversion to mid 2000s, so thank goodness for the 3000stall TC. The torque-peak might be around 3800 so in first gear that might be around 37mph, again, if the bottom is soft , don't bother flooring it at much under 30 mph.

But say you found a 227*roller that was only 265* advertised @.006tappet rise. Same .050, same 5300rpm power-peak, but now the intake is closing 21/2=about 10* sooner, and trapping easily 10 more psi cylinder pressure. That would be worth more than one cam size as to a stronger bottom end.
But the power-peak problem still remains; if it doesn't spin, it's a long wait to get up on the cam.

So you have a few options
1) is a smaller fast rate of lift cam to pump up the pressure and thus the torque, and the earlier, smaller, powerpeak all combine to take off harder while peaking earlier.
2) increase the compression ratio, to increase the cylinder pressure, to affect an across-the-board performance increase.
3)get some bigger gears to increase the power to the road by torque multiplication, making the engine act like it's bigger. This has the double-whammy bonus of bringing the Speed down at the powerpeak. For instance; that same 5300 peak with 3.91s brings the speed down to 42 mph from the earlier 50+, and by 60 the rpm has risen to 4440
4) get a bigger engine that already has a stronger bottom end by virtue of cubic inches.

Just remember, as soon as you hit second gear with a torqueflite, the rpm falls to 59% .If you carry that 5300 rpm peak out to 5900, then the Rs will fall to 3480, and so yur engine better have some pull in her to get back up on the cam; again it's a long way to the torque peak at ~3800, and 60 mph in second will be ~3700. So yur kindof shooting yourself in the foot if yur looking for low ET from zero to 60. That 227 cam will be great in first gear, but then it's sortof over.
Roller-cams are NOT like FTH cams, and 318s are not 403 olds engines; there is absolutely no comparison.
If you want to keep the 3.23s, and if you have a Low-C 318 ,then you have to be really really careful; and the cam is NOT the place to cheap out.