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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend> O.K., What should I do with the modulator line??
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Topic Review (Newest First)
06-27-2003 10:23 AM
troy-curt It should go to one of the holes on the intake.On chevys it`s right in front of the dist. With power brakes there is a t fitting there; hth;

Troy
06-27-2003 03:33 AM
andybird
Quote:
Originally posted by Stinky
Doh,
On the carb somewhere
I have several unused holes that I plugged on the Edebrock Performer intake. I dont know, but I would assume this pulls the same vac pressure. Would it be wise to throw a "nipple" type air fitting on and put the vac line from the modulator valve on that??
I recently put a performer intake and edelbrock 600cfm on my chevy, same problem (used to be a rochester), I did exactly what you describe, I used the hole at the back left of the intake
06-26-2003 12:22 PM
Rubberman2003 On my car there is a T shaped plastic piece to the left of the engine near the fire wall, mine goes into there and plugs into the tranny. 84 Z28...350 motor
06-26-2003 07:25 AM
Stinky Doh,
On the carb somewhere
I have several unused holes that I plugged on the Edebrock Performer intake. I dont know, but I would assume this pulls the same vac pressure. Would it be wise to throw a "nipple" type air fitting on and put the vac line from the modulator valve on that??
06-26-2003 06:46 AM
troy-curt your post wasn`t very clear on details,where was it connected
before?
06-25-2003 05:03 PM
KULTULZ I assume you are working on a PONTIAC and went from a ROCHESTER to a HOLLEY? And there is no manifold port on the HOLLEY?

You will need to source manifold vacuum at the carb, spacer or intake manifold to have the modulator valve work correctly.
06-25-2003 01:31 PM
Stinky
O.K., What should I do with the modulator line??

The modulator valve line is sitting with nowhere to go. I put a 750 Holley carb on my car. Did i miss something or am I missing something on the car??

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