How does the engine do at turning over with the ignition off but with the plugs installed? If it does better, you may have way advanced ignition timing. Set the timing statically to about two degrees BTDC and try again. Is the firing order 1-3-4-2? That would be correct. Distributor rotation is counter clockwise.
I doubt you have increased the compression so much that the starter won't handle it, very seriously. The starter and battery may be good, but how are the connections? and are you sure you are using heavy enough leads? Did you crank the engine over to establish oil pressure before trying to start it? Also, can I assume the engine is still out of the car?
The camshaft is solid state. It cannot open the valves out of sequence, one relative to another, but the cam timing could indeed be wrong overall. That's a pain! Let's eliminate everything else first. Consider these questions and we'll get it solved, I'm sure.
From Lola to Land Rover, If it's British and has wheels, it's likely I've bloodied me knuckles thereupon