View Single Post
Old 01-18-2021, 11:15 PM   #23
Kilohertz
Senior Member
 
Kilohertz's Avatar
 
Join Date: Jan 2021
Location: Slightly left of Vernon, BC
Posts: 155
Default Re: Manifold vacuum at idle... vs without...interesting observations

Quote:
Originally Posted by Hal Beatty View Post
If it was the one used with the Load-a-Matic distributor it has different passages for the dist. vacuum and will give you a venturi vacuum signal.

Only if you don't modify the carb. I plugged the venturi feed and only left the ported hole open just above the butterflies to give me straight ported vacuum...then realized I wanted manifold vacuum, for all the reasons discussed.


I know these are flathead engines, but read thru this article.


Cheers
Attached Files
File Type: pdf Vacuum_Advance_Specs.pdf (243.1 KB, 16 views)
__________________
1949 Ford F-47 with a '51 8BA Flatty, GM TBI fuel injection system, and a grey shop cat, Spot.
Kilohertz is offline   Reply With Quote