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Author Topic:   Secondarys ???
Doran
Dirt Roller

Total posts: 21
posted May 08, 2005 05:35 PM  
I`m running a 305 with a 4 barrel Quadrajet in a pure stock. I took her to the track for the first time for practice today and as always started and idled great. When I got out on the track it ran good with no problems untill i put her to the floor. When you put it all the way down it boggs bad!!!, if you ease into the throttle it sounds and goes great, untill you get to the bottom of the throttle. My guess would be that the secondary`e aren`t opening all the way. How far are they supposed to open (all the way or just alittle)? Are the secondary`s run on vacuum or is there some linkige I am forgetting? Thanks

ryan
Dirt Forum Champ
Total posts: 776
posted May 08, 2005 08:29 PM  
Try adjusting the secondary air flap tension.

Speedracer92
Dirt Full Roller

Total posts: 70
posted May 09, 2005 08:34 AM  
I agree with Ryan, it sounds like your secondaries need to be adjusted. I would say they are opening too soon. On the rear of the passenger side of the carb there is a place to adjust when the secondaries open and I would bet that is your problem. You need a small allen wrench and a screwdriver to adjust it if I remember right.

Doran
Dirt Roller

Total posts: 21
posted May 09, 2005 07:22 PM  
thanks guys, no time tonight but I`ll try tommorow night.

later

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