piper

Hi, Lars Grimsrud wrote a paper on Distributor Vacuum Advance Control I lost mine and a friend would like to read it Can someone please post it for me Thanks PS I have this one Carburetor Vacuum Ports:

Manifold, Ported and Venturi Vacuum Explained



It is not the one Thanks Again

Powershift

Try this link: http://www.corvette-restoration.com/...o_articles.htm

I got this link by doing a GOOGLE search on the web. You can/could too

It may also be listed in the FAQ Section at the top of this forum page.


Larry

EDIT: Using the FAQ Section in our forum, I was able to get a more recent copy of this same paper. The link is http://www.lbfun.com/warehouse/tech_...ance_Specs.pdf

Subfixer

I just copied the paper from a 2002 thread into this thread (post #14) this morning:

http://forums.corvetteforum.com/c1-a...ch-vacuum.html

piper

Thanks to all That is it

TroyPyles

I see there is no listing in Lars paper for 63 high performance and FI. There is a 64 and newer FI listed. Does this mean the correct unit for the 63 fuelie is the same as the passenger car?

JohnZ

Nope. The '63 Corvette fuelie had "ported" vacuum for the distributor, so it had no vacuum advance at idle (thus, no spec for idle vacuum); this was a mistake, and they corrected it for '64, changing to full manifold vacuum. Use the VAC spec'd for '64.