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Forum: 68-69 GTO Tempest & LeMans TECH 10-22-2021, 12:37 AM
Replies: 18
Views: 3,688
Posted By dataway
On the test stand I just ran it straight to...

On the test stand I just ran it straight to manifold vacuum, that's the way I ran it for years when I was driving it daily 40 years ago ... .and I suspect that's the way I'll be running it in the...
Forum: 68-69 GTO Tempest & LeMans TECH 10-21-2021, 07:05 PM
Replies: 18
Views: 3,688
Posted By dataway
Wish I could figure out how to hook up mine on my...

Wish I could figure out how to hook up mine on my 68 .... I've got a 704 carb (1971) ... doesn't have the same ported vacuum source of the 702.
Forum: 68-69 GTO Tempest & LeMans TECH 10-21-2021, 02:50 PM
Replies: 18
Views: 3,688
Posted By dataway
If you use the TVS system, be aware of the...

If you use the TVS system, be aware of the Service Bulletin that removed the ignition retard function in late 68. They looped two of the ports on the TVS and only three hoses were used.
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