340 camshaft question, yea another one.

crackedback said

If you didn't have control over the idle mixture screws the tune up is off.

That camshaft is not the issue, It's only230ish at .050, not big by any means. it's the tune up around the engine. IMO, 16 initial is not enough for what you have. Should be 20-24. That will allow you to close up the primaries and likely get control over the idle mix screws. Crank as much initial in as the starter can handle and see where it lands.

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When I first installed the cam I had no mixture screw control. That's why I drilled the throttle plates.
Now the mixture screws are at 1 1/2 turns out from seated at the max vacuum, 15 inches vacuum in park. The transfer slots are square in shape.
The timing is set at 16*and with manifold vacuum it goes to 21*. You'd think if the v can is 14* at 14 inches the idle timing would be higher. If I set the initial to 18* the starter kicks back, so it's set at 16*