Quote:
Originally Posted by Lee Valentine
Manifold may have hurt torque.
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Almost certainly moved the power band up a few hundred RPM. At the very least.
Might be something the PowerGlide and current converter do not like. And will almost certainly not like a big RPM drop, a lower low gear set, say 2.08, may make it even worse. You shift sooner, at a lower tire speed and vehicle speed, and then try to accelerate with only the converter and the rear gear.