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this is my chevelle but its the same intake, heads and carb set up
Thanks nowhere man. The part I got from Paragon doesnt fit if I mount it like you have on that intake bolt. Ive verified the part number is correct. Im either still missing the big picture or the bends are off on the tube.
If I bolt the clip to the manifold like you have it there is no room for any rubber hose between the tube and carb fitting.
Pic from the old Vette Vues Fact Book (of a 66 390). All of pictures Ive checked of as-delivered 390s show the tube angled, not parallel with the valve cover.
And that 67 is missing the PCV bracket on the drivers side that goes to the intake bolt and the by pass hose clamp has been changed out. It’s amazing how little details get changed in a few short years when he wrote that book. I’m not saying it’s all wrong or I seen everything just pointing out what I have seen But back on topic the op is on the rights path
Pic from the old Vette Vues Fact Book (of a 66 390). All of pictures Ive checked of as-delivered 390s show the tube angled, not parallel with the valve cover.
Thanks for the great pictures. I have that black PVC bracket noted too. My car has the one on the driver side intake manifold bolt but I actually was looking for the other one you showed on the carb bolt.
And here is a magazine cover picture from 1966 on a Chevelle 396 with the by pass hose clearly showed Take note that the hose was installed at Tonawanda they both use the same intake, and water pump. And just about everything else is shared. You can see the other type of clamp
Being as how the carb was not added until the engine went down the St. Louis engine dress line, most of the VAC integration parts were installed there, so the location would likely be in the AIM.
It's not uncommon for parts installed on the engine dress line like this clip to require removing an engine plant installed fastener, install the part, which would be the case for a clip attached to a manifold bolt and reinstall the fastener. Even if the clip was installed at the engine plant it would probably be illustrated in the AIM in the proper location showing the hose or pipe installation.
It's also not uncommon for routing of wiring and/or hoses to change during production along with various clips and retainers.
Duke I am away on vacation and my AIM are at home. Going from memory I know the clip was installed prior to paint on the engine. The AIM will show the tube going to the carb. And it will show the clip in a drawing saying something about attach to production clip assembly.
Ok, had to check my 66 AIM, page 325, L-36, no mention of subject clip, but look at the configuration shown for the vacuum advance tube connection? The front of the carburetor? (looks like a quadrajet? rather than the correct 600cfm Holley)
Okay my AIM shows the L36 on page 366 and that vacuum advance line is definitely wrong. But the carb is the correct part number for the Holley 3370 (3882835). Just a poor drawing of it. And PCV hose (#3) seems to be directed to the carb base instead of to the valve itself in the rocker cover. This AIM L36 diagram appears to have been redrawn in Nov? 1965. So I'd be curious if an early '66 L36 is anything like this. Mine is an April '66 (late) build and matches the L72 set up.
Hose number 3, on the picture I posted, connects the carburetor to the vacuum advance tube? Perhaps you have a different picture for the 390 horse/L-36
07-10-2021, 04:24 PM
66 427/390 vacuum adv clip & line pix needed
The picture of the 66 390 has the same bypass hose clamp as the 67? Below is a picture of the 66 390 showing the clamps? Who knows :-)
