Backfires through Carb when cold.
Thread Starter
Safety Car
Joined: Jan 2001
Posts: 3,637
Likes: 27
From: Norwalk Ct
Backfires through Carb when cold.
I am running a small block with a 274 XE cam, DART cool can intake, demon carb (no choke), 10.5 to 1 compression (factory rating in 69) ported factory "camel hump heads with 2.02/1.60 valves. When the car is cold its pretty "stubborn" coughs and splutters until it gets warm, then goes liek stink!!!. I noticed today that it actually backfired through the carb when cold, so maybe the timing is a little out, in which direction should I adjust, advance it or retard it?
Nick
[Modified by lvrpool32, 7:32 PM 11/4/2003]
Nick
[Modified by lvrpool32, 7:32 PM 11/4/2003]
Burning Brakes
Joined: Mar 2001
Posts: 1,211
Likes: 5
From: Nashville TN
Re: Backfires through Carb when cold. (lvrpool32)
If the timing is retarded it can cause a backfire. I woulf guess you are having trouble with a lean backfire. Keep your foot out of the kitchen until the car warms up, or put a choke on it to help richen the mixture.
Safety Car
Joined: Jan 2001
Posts: 4,660
Likes: 3
From: South Central Louisiana
St. Jude Contributor
Re: Backfires through Carb when cold. (dman535)
:iagree: I have no choke as well. I keep light pumping to keep raw fuel pouring into the mix until she warms up a bit.
