LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

msd opti vented?

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Old Oct 27, 2006 | 11:48 PM
  #1  
ajlew9428's Avatar
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From: Hamilton,OH
msd opti vented?

I have a 94. Is the msd opti that fits my spline vented? What modifications do I have to do if it is?
Old Oct 28, 2006 | 12:03 AM
  #2  
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From: Raleigh, NC
Yes it is and they include the tubing for it as well, although it seems like a piece of junk rig. You'd have to tap your intake elbow for one hose, but I don't know if your intake is just capped or what where the other hose goes.
Old Oct 28, 2006 | 07:27 AM
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From: Bartonville, Ill
The other hose taps into a line on the drivers side of the intake. Got to remove an elbow and replace with the plastic T junction and inch long rubber hose.
Yes the MSD that I had was JUNK. Got a newer GM piece. Take the MSD apart and make sure the bottom of the rotor does not rub the body of itself. I could not get 1100 RPM because of that. Long time wasted.

Last edited by 3DFORMULA; Oct 28, 2006 at 07:29 AM.
Old Oct 28, 2006 | 02:37 PM
  #4  
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Originally Posted by 3DFORMULA
The other hose taps into a line on the drivers side of the intake. Got to remove an elbow and replace with the plastic T junction and inch long rubber hose.
Yes the MSD that I had was JUNK. Got a newer GM piece. Take the MSD apart and make sure the bottom of the rotor does not rub the body of itself. I could not get 1100 RPM because of that. Long time wasted.
My MSD opti was great, the hose they sent me was junk.
Old Oct 28, 2006 | 02:40 PM
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ajlew9428's Avatar
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From: Hamilton,OH
thanks guys, and gals
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