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HybridZ

Holley dp too rich?


Heavy Z

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Here's what's up: when I start my car in the morning and put the choke on, it'll run fine while it's just idling. If i try to drive the car with the choke on while the engine is still cold, the car will bog and sputter above 1500 rpm. If I take the choke off then it's fine. The choke won't do this once the car is warmed up. So I'm a bit rich - is this bad? Is it worth re-jetting the primaries or not?

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In my experience manual chokes must always be at least partially opened when the engine fires/starts, and even more when you begin to move the car. Do you really even need to pull the choke? In this area (Chico) a couple of pumps on the accelerator is generally all it takes. When I do use a choke I push it all the way in (off) as I leave my driveway- it gets expensive to run down the freeway with the choke on, and can damage the engine as well. If I don't take it off right away, I forget: see screen name. (Sometimes I have to pull the choke back out a ways if I hit an early stop light).

 

Carb jetting is a whole other story... if you bought it new, it is likely pretty close. You will need to check plug color or visit a dyno facility to know.

 

Hope I read your post right & this helps.

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