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You set it at 36 degrees total but where did your initial end up? How much vacume advance are you pulling?

It seems like the most common thing people do is stab in the lightest springs then dial up the initial for a good idle and response then end up with too much total and a curve that's faster than the engine wants-let the bucking begin. When you finally get the curve right and the inital and total optimized you'll be able to stab the gas pedal at any speed or rpm and have it just pull crisp and clean. Forget about adding vacume advance untill you get the mechanical curve, initial, and total optimized- then add a little vacume advance to the mix just a little at a time to see just how much the combination likes at cruize and under slight load. JMO
 

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Registered
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1,286 Posts
You set it at 36 degrees total but where did your initial end up? How much vacume advance are you pulling?

It seems like the most common thing people do is stab in the lightest springs then dial up the initial for a good idle and response then end up with too much total and a curve that's faster than the engine wants-let the bucking begin. When you finally get the curve right and the inital and total optimized you'll be able to stab the gas pedal at any speed or rpm and have it just pull crisp and clean. Forget about adding vacume advance untill you get the mechanical curve, initial, and total optimized- then add a little vacume advance to the mix just a little at a time to see just how much the combination likes at cruize and under slight load. JMO
 

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As was posted, timing totally depends on the engine combination. There is no "magic" number. We run our 632 at 32* initial advance and take it down in the low teens with nitrous. A friend has a 892 ci engine and his is set at 26*. Learn how to read plugs...they are what really tell you how happy the engine is.
 

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Anyone have a good link to setting timing for dummies? Step-by-step w/ instructions for each step?

Tools/Parts Needed?

1. Setting/Measuring Initial timing.
2. Setting/Measuring "total" timing.
3. Setting/Measuring vacuum advanced timing.

etc.?
 
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