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Mod | | | Forums66 Topics128,163 Posts1,056,964 Members48,458 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Oct 2005 Posts: 1,317 Shop Shark | | Shop Shark Joined: Oct 2005 Posts: 1,317 | On the Carter/Weber dual setup you need to have both chokes hooked up to a "key on" electrical source. You may have to readjust your idle mixture after getting them both wired. If I remember correctly, Langdon included a pig-tail with double electrical connections.
As for the timing....I'm running the conventional dizzy with an Ignitor I which just replaces the points with a magnetic pickup so I do a little T&E adjusting with a timing light and vacuum gauge. I pick up the vacuum off the large port on the center of the intake and normally adjust to maximize my vacuum reading and then retard (CW) 1" of vacuum. I added a little tang on the driver's side of the timing cover and I mark it as a starting point. (I've already marked the Harmonic balancer at TDC to correspond with the center of the timing tang I've added) A short road trip to make sure it's not pinging will let me make a couple very minor adjustments and I've found it's easier to check or reset the timing than trying to peer through the timing port above the starter. I have some pics of the setup in my webshots album.
I added it to the driver's side because I have the alternator mounted on the passengers side and it blocks my view. Just have to be a bit careful running the timing light wires over the top of the engine.
Tapping the starter is great....the C/W setup works great but had to richen my mixture a bit when our stations all switched to the E10 blended fuel. Also suggest you make sure your standard rubber fuel lines are converted to the blue-lined ethanol rated lines to avoid problems. I run my regulator at 3.5 psi. If you're running a liquid filled fuel pressure gauge in the engine compartment and notice 0 psi....applying a wet rag to the gauge will get it back to reading correctly.
Dave | | |
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