holley 12 804 adjustment

$59.69 . With this set up, pressures throughout system varies only very slightly from atmospheric, lower up to the vacuum tank and higher in the gravity feed from the vacuum tank to the carburettor. At first it seemed fine, set it to 1.5 PSI and away we go. The higher the RVP, the greater the tendency to vaporize or vapor lock. You can wire a by-pass switch for priming if it is really required. I had a chrome dial regulator, which leaked gas everywhere but luckily didn't actually burn down my ride. If you purchased April gas when you take your Antique out of winter storage it is only a month until the switch from 124 deg F to 140 deg F. This might explain a lot of problems in early summer. [endif]-->, http://www.bp.com/liveassets/bp_internet/retail/retail_australia/STAGING/local_assets/downloads_pdfs/f/FN_modern_petro_vintage_engines.pdf,