Yes Bill that is how I do it. I use the torch head, and move it slowly around the engine, especially the carb base. If there is a leak the engine will speed up when the propane is sucked in. Hope this helps. Nico Over Va. Beach, Va. On Wed, 15 Sep 2010 23:01:49 -0700 (PDT), William Harrison wrote > I swapped from a 650 Edelbrock to the Holley. > I had the throttle and kick down loose and started the motor and > high rev instantly. How do you use the propane? Open the valve and > wave it around the base and vacuum openings? > > Later > Bill > > --- On Wed, 9/15/10, Nico Over <nover@xxxxxxxx> wrote: > > > From: Nico Over <nover@xxxxxxxx> > > Subject: Re: 750 Holley > > To: 1962to1965mopars@xxxxxxxxxx > > Date: Wednesday, September 15, 2010, 4:41 PM > > > > Bill were you running another carb on this engine and just > > swapped to the new > > 750 and this condition appeared? Also does it run away with > > no throttle hooked > > up? If it is a vacuum leak I use propane to find them. Hope > > this all has not > > been addressed previously, am late to the party on this > > one. > > Nico Over > > Va. Beach, Va. > > 63 Dodge 330 > > 64 Plymouth SF > > 65 Bel II vert > > > > > > ---- > > Please address private mail -- mail of interest to only one > > person -- directly to that person. I.e., send > > parts/car transactions and negotiations as well as other > > personal messages only to the intended recipient, not to the > > Clubhouse public address. This practice will protect your > > privacy, reduce the total volume of mail and fine tune the > > content signal to Mopar topic. Thanks! > > > > 1962 to 1965 Mopar Clubhouse Discussion Guidelines: > > http://www.1962to1965mopar.ornocar.org/mletiq.html and > > http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. > > > > > > ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. This email was sent to: arc.6265@xxxxxxxxxxxxxx u/?bUrDWg.bSONJP.YXJjLjYy ?p=TEXFOOTER