Originally Posted by
donf
What I did timing wise. The initial advance with the distributor is at 10 degrees and never changed. I set the initial advance on the chip to different settings. Because the definition includes the initial advance on the total timing calculation for the main timing table, you can bump the whole table up and down very quickly by just changing the initial advance offset. Correct? During a WOT run only a dozen or so cells are hit, but It can help find if your table in those areas are way off.
Random main timing table cell at 20 Initial Advance 10
Initial advance on chip 10
True advance on that cell in addition to the initial timing 10 Total is 20
Random main timing table cell at 20 Initial Advance 10
Initial advance on chip 5
True advance on that cell in addition to the initial timing 15, total is now 25
The air cleaner is a black 14x3 from summit. I still have the stock 3" ring that I think may be a restriction, but haven't looked into it yet. I am not that disappointed. I actually gained a lot torque wise and its felt with a big van. It's basically stock vortec style heads with the sharp edges below the seat knocked off, with an almost stock roller cam with tighter LC and a tbi intake. So really I was not expecting more than 200 at the wheels. It's not done, I can keep messing with it as time allows, but it's good enough to drive now.
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