Now, my car is schiptuned and I would adjust the base timing in the chip as well, but is there any benefit to advancing the timing more than the stock 6*? Maybe for a little quicker response or something like that? I'm swapping the intake manifold soon to an edelbrock base so I'll have the dizzy out anyway, so I was looking for opinions on if it matters at all. Again, I would change the chip to match the base timing at the motor still, so my tune would still be accurate. Does it matter? My initial thought is no, so don't bother, but the more I think about it the more I think to myself that if the dizzy has to do less work to adjust the timing, then it'll start easier and the throttle could be a smidge snappier.

 

other guys that know better will chime in, but from what I remember. the ecm take over timing at like 400 rpms or so. so the base would change your cranking time and what it defaults to if the ecm goes into limp mode maybe. I've seen 6 and 8 in gm cars. I don't believe it matters unless yours having a issue with something. it does need to match the ecm base thou.

 

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On a stock engine probably no. If you have a cam with more overlap then more advance while cranking could be beneficial.

 

If you go over the stock 6 degrees mechanically (on MAF cars at least) it limits how much advance you can use even if you tell the computer that you raised the base timing since the computer won't go over 44 degrees total if I remember right. This may have changed for the speed density cars if they went to 8 degrees but I haven't messed with those. As far as hard cranking goes the stock starter kinda sucks anyway.

 

I have a proform mini starter, not the stock one. I needed it to clear me headers and to adapt to the 163-tooth flywheel on my 355.

 

I do have a comp 8-502-8 hyd roller cam. So maybe I should increase to 8 or 9 degrees?

 

I set my base timing at 11 degrees with my hotcam 218/228, 10.25 CR. It starts instantly hot or cold. Any less and it cranks over a few times before starting. Any more and it tries to kick back against the starter when hot.