I had most all the bells and whistles on my dragster, ran Q/R and some Top Dragster. Best ET W/stroker motor 5.08 134 MPH @ 1800lbs.
355's and 377 Ci went like 5.49-5.70
We also used an item they call a transbrake, stall converters around 5000-5600 leaving around 4500 on full tree and on the wood on Pro-Tree.
Originally Posted by F-BIRD'88
If your motor requires that much timing you need to address why. Some older leaded type race fuels slow the fuel burn rate down too much requiring more timing.
Modern unleaded race gas has a quicker burn rate more like pump gas and does not need so much timing. (and it makes more power as a result.)
High piston dome creates a convoluted combustion chamber, slowing and upsetting flame travel speed and efficientcy, again requireing more timing.
Fixing the dome contour solves this, restoring the flame travel and efficientcy.
less timing and more power.
excessively rich fuel mix AFR's sometimes used to ward off detonation and preignition slows the burn speed, requiring more timing.
correct full power AFR uses less timing and makes more power.
If you do not use the proper idle timing then jacking up the timing to compensate can fool you into thinking the motor needs this much timing to run best.
The car will leave the hardest if you stage near idle just off idle and shock the converter
to maximize converter flash stall and torque multiplication and chassis reaction at launch.
On a racey big cammed motor, locked out timing allows this by maximizing low rpm throttle responce.
When the proper amount of idle timing is employed you do not need to stage loading the engine rpm up against the converter at the line to get the spark timing up as you do with an advance curve.