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502tripower · 11-02-2008, 12:41 PM

I am assuming you have a Rochester 2-GC 2-barrel on a 170 HP 283? As others have said the accelerator pump. One thing to look for in these carb kits is the plunger for the accelerator pumps fit in the carb base. Make sure that it is not to big or to small. Also if you are using gas that has "Ethanol or E-85" This can be a problem on the rubber parts if they are not specifically rated for Ethanol or E-85. Check out this thread on the subject.

http://www.348-409.com/forum/showthr...highlight=fuel

11-02-2008, 12:41 PM	#6
502tripower Registered User Join Date: Jan 2008 Location: Satsop, WA Posts: 606	Re: cross your fingers I am assuming you have a Rochester 2-GC 2-barrel on a 170 HP 283? As others have said the accelerator pump. One thing to look for in these carb kits is the plunger for the accelerator pumps fit in the carb base. Make sure that it is not to big or to small. Also if you are using gas that has "Ethanol or E-85" This can be a problem on the rubber parts if they are not specifically rated for Ethanol or E-85. Check out this thread on the subject. http://www.348-409.com/forum/showthr...highlight=fuel __________________ 1963' Chev Custom Cab 502, 67' 435hp 3X2 intake, 9" 4:30 Posi 1961 Impala SS 348/350 4-speed 3:70 Posi 1961 Bel-Air Bubble Top 283 Turboglide soon to have a 348 3X2 4-speed 1950 17' Fairliner twin cockpit barrel stern 312 Y block 1X1 intake Borg Warner 1:1 gear 1957 Fleetform 14' twin cockpit barrel stern 1969 BP-125 Merc 1949 Transitier 3-wheel forklift Crosley 4-Banger 98' FXD 2002 2500HD Last edited by 502tripower; 11-02-2008 at 12:41 PM.