Eric Hysteric wrote:
Thanks Griff, the PCV line is connected at the PCV Port. In most Edelbrock-threads, people advise to connect the distributor line to the timed vacuum port.
For example in this topic
Read that forum thread (topic) again. People are arguing one way and the other, so some of them don't have a clue.
In particular, read RustyRatRod's post.
The Edelbrock literature assumes everybody has a newer vehicle, newer than your motorhome. If you dig deep enough in their literature, you may find some mention of older vehicles. (Or, they may assume anyone with an older vehicle knows what they're doing.)
Older vehicles (pre-1961) didn't even have PCV, just a draft tube off the crankcase. (My '47 Willys Overland and '49 Int'l Metro were both draft tube -- no PCV) The only carburetor vacuum fitting was manifold vacuum for distributor advance.
My '66 Dodge Polara, the '68 Chevy 283 in the '65 GMC stepvan, and '69/70 Dodge M300 Class A all had PCV plus a single manifold vacuum port for distributor advance. (All three had the brake boosters ported off the manifold rather than the carburetor, with a check valve.)
But, don't take my word or anyone else's for it. Try it yourself.
With the two vacuum lines connected one way, check your gas mileage (gas klickage?) and see how the engine performs. Then, switch the lines and run the test again. (Use the same route/course both times to eliminate road variations.)
