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995jim "7th Year" Silver Supporting Member Posts 950 
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10-06-24 04:13 PM - Post#2874464
hi, looking for help from people with blown motors. Im currently pulling my trans modulator vacuum from a port at the bottom of the carb on my blown engine. The only other option I see is an 1/8" tapped port on the back of the blower intake which im sending to the 6btm unit. Do i leave it where its at or is it better on the downstream side of the blower at the 1/8" tapped port thanks jim
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Rick_L Member #409 Posts 28124 
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10-06-24 05:58 PM - Post#2874467
You need “manifold vacuum”. Connecting at the base of the carb should accomplish that. Put a vacuum gauge on the port to be sure. |
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Shepherd Valued Contributor Posts 3603 |
10-06-24 05:59 PM - Post#2874468
The operating range of normal modulator is 0 to manifold vacuum, find a source in that range. Some performance modulators are adjustable to fine tune transmission shifts to the engine's performance characteristics. |
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