Right now my timing is at 4 (suppose to be six) and I am going to move it up to 8 tomororw will I notice a differance or no?

 

Mkos,

Until you reach the point where the knock sensor starts to detect detonation and retards the timing, you should get a performance improvement by advancing the spark timing, within reason.

It is possible to introduce too much advance, but this is hard to do if you are reasonable and allow the ECM to do its job. If you only adjust a few degrees at a time, you'll notice a performance decline well before you get too much intiial timing. If you make a huge jump of 10° at once, the ECM may be at full retard and you may still hear detonation. In this case, you'll have to retard the base timing just to get performance back to "normal". By the time you've adjusted it that far, the ECM will have already retarded the timing so far you'll actually lose performance.

If you increment about two degrees at a time, you should be safe. If your timing marks are accurate and you use higher octane fuel, you should be able to run at 10° BTDC with an otherwise stock setup. If your engine has higher mileage, you might be able to get away with a bit more base timing.

But every engine is different, so experiment a little at a time.

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Vader
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yes.