The great Dominator idle and part throttle rich condition....This is an issue no doubt....we started to adress this issue in 2002 when we started really seeing allot of big "race" type engines being used on the street....

We made several attempts in the early years to try and bandaid this problem with so-so results....and we have been constantly making advances since...

In 2007 we started working more with the 2 circuit theory that has been around for a long time but most didnt want to here about it because the "3 circuit" carb would make more power on the track....but remember were not talking 100% track cars here so if we gave up 10 HP somewhere and in trade gained a clean idle and cleaner cruise our customers would be happy with that.....

We seen instant results with our 2 circuit carbs and knew it was going to be a great carb for street cars that cruise allot....and since then we have have not only made a great cruising/idleing carb but we also have it worked into our race line-up and they run just as fast as the 3 circuit stuff we build and have a clean cruise up the return road and in the pits.....

So if you have an engine that needs the Dominator at wide open for Peak ET/HP you dont have to give up and go back to a 4150 to get a clean running carb....all the mods that you see other racers making to these carbs are on the correct path but it can make you pull your hair out.....

Jesse @ BIGS!!


Jesse & Lynn BIGS Performance Products Building Street/Strip Carburetors since 1974 www.bigsperformance.com