Posted by Sterling From TX [99.98.76.231] on Saturday, May 11, 2013 at 22:05:52 :
In Reply to: Vacuum ports on a 251??? posted by Sterling From TX [99.98.76.231] on Friday, May 10, 2013 at 08:38:10 :
The intake was loose and the heat expansion caused it to only do it when hot. Much better now that whistle was getting annoying. Thanks Jens for the help!!