holley 12 804 adjustment

But the heavier elements will raise the boiling point of the mixture. There's always a catch with bargains, Reviewed in the United States on July 9, 2022. Driving on a warm day in heavy stop start traffic it started vapor locking on a climb - using 10% ethanol fuel with no additive . You refer to the problem of the additive increasing the propensity for the fuel to self ignite however in my case the compression ratio of the cars is so low (around 4 : 1) that I doubt that it would be a problem. So this thread has been a great find for me particularly at this time. Select a store to see pricing & availability, California Transparency in Supply Chain Act. Conversely if you go too high and it knocks - you can bring it down with kerosene or the paint thinner family. Sorry, we were unable to perform your search at this time. 2-Port Carbureted Fuel Pressure Regulator (12-804) by Holley. I feel I am 95% there, and a slight improvement would be all I need - for now, that is unless the ethanal mix changes (your tax dollars at work). From start to finish, Holley has the parts to make your dream a reality. . Note also that PURE ethylene glycol is also flammable but also miscible with water. Gauge looks small..it is not. It is not all the same. THE SECOND ISSUE - the vapor system on the Packard is going to be a problem no matter what today. I had hoped that the cooler fuel from the electric pump would solve the problem but it did not. So - you cannot just say whether it will work or not. The other part numbers utilize an AN O-ring inlet, outlet, & return ports, and do not require any sealer on the threads. Estimated Ship Date: Today. Discussion in 'The Hokey Ass Message Board' started by striper, Aug 12, 2009.