Quote:
Originally Posted by Bailey28
Forgive me, what is an EVAP system? Emissions related? the Carter carb does not have a bowl vent like some of the earlier ones did that open to the atmosphere. I had one that had a large rubber flapper valve on the right side, but got rid of it.
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EVAP (Evaporative Emmissions) in the case of a carb, does not allow the fuel bowl to be vented directly to the atmosphere (done be eliminating the open vents we are more familiar with). But even if you have a later EVAP model, leaving the vent open (not having the EVAP plumbing intact and operative) has the same effect. The gasoline will simply evaporate over a given period.
Even the HOLLEY 1850C you mentioned has EVAP. Those were the two large hoses connected to the fuel bowls. It may become neccessary at some point to have a modified carb EVAP system on a street driven carb car as the formulation of gasoline keeps changing (especially the addition of alchohol) and is hitting four bucks a gallon.
Also make sure the float level is correct as if too low will exhibit like conditions.
Please let us know what you find for the archives (post to this thread).