Does the ignition timing change when you take a stock 305 and rebuild it as a 335 stroker?

Would the ignition timing still be 0 degrees btdc (before top dead center) or would it change?

305 is 0 degrees
350 is 6 degrees

I would think the 335 would change, would anyone know what it is or how to find out what the ignition timing should be?

 

Base ignition timing is set by you and has nothing to do with the size of the motor.

 

That would depend on where you put the distributor back in.

By itself, stroking a 305 will not "change" the ignition timing. It will certainly change the timing of making your car faster; it will delay it substantially.

Get a "bore kit" instead. You get them at the junkyard, for $100 or less. It magically turns your 3.736" bore into a 4.000" bore while allowing you to use standard, off-the-shelf parts, and requires no grinding or special cams or other expensive or difficult adaptations. You get more inches than you get from the "stroker" kit, i.e. more power, for less money. Forget the 335, it is a bad idea and is just another way for less-informed people to become parted from their $$$$.

In general, an engine's ignition timing requirements follow the cam profile, and the compression ratio. If you modify an engine you will almost always have to change the ignition timing just like you'll have to change the fuel delivery. In a fuel-injected car this is accomplished with computer re-programming, larger injectors, or both. Ignition timing is altered by way of the static setting, or computer programming, or both.

 

bore kit, damn rb you kill me with that