Jspeed

The Kyosho VS058 clutch bell is not from the Evolva, it's from the FW05 1/10 scale chassis. If the VS058 if the clutch bell you're using, check to see if the bell is actually coming in contact with the 2nd gear spur's two shoe drum and not allowing a good mesh of both 1st & 2nd. If the bell is hitting the drum, it will rock back & forth which will not allow you to get an even mesh.

Another thing you can try if the above is not the issue, is to check if there is enough free travel of adjustment of the car's engine mounts.

Try using the old "paper between the gears trick" and physically hold the engine up against the spurs while tightening the engine mount. A lot of times things can move around in the process.

The last thing I can think of is, maybe running a 17/21 (4 tooth split) might be too much vs the 46/43 (3 tooth split). I know it wasn't an issue with our old Blackhawk rig, you could actually run as high as a 5 tooth split or as little as 3 tooth split without any problems...... but that's a whole different animal with a lot more gearing/spur options.

Post a few good pictures, maybe we can see what else it could be that's hanging ya up. Good luck!