backfires=off timing?
08-09-2007, 01:03 PM
#1
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Car: 1983 z-28/SFC/bilsteins/adj.arms
Engine: 355sbc/Demon650dp/hedmanheaders/
Transmission: t-5, alum DS
Axle/Gears: 3.42 torsen posi, baer discs
backfires=off timing?
my 355/holley 3310/t-5 combo started backfiring from the tail pipe after i changed the PV to a higher 9.5. when i'm accelerating it's fine. but when i slow down in gear i can hear the tail rumble and then start popping. it never does this on acceleration or starting or any other phase...only on deceleration. is this timing? i'm running about 20* total....
08-09-2007, 02:18 PM
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Car: 1983 z-28/SFC/bilsteins/adj.arms
Engine: 355sbc/Demon650dp/hedmanheaders/
Transmission: t-5, alum DS
Axle/Gears: 3.42 torsen posi, baer discs
Re: backfires=off timing?
sorry, base was 20....i don't know total......is timing the cause?
08-09-2007, 04:55 PM
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Car: 1983 z-28/SFC/bilsteins/adj.arms
Engine: 355sbc/Demon650dp/hedmanheaders/
Transmission: t-5, alum DS
Axle/Gears: 3.42 torsen posi, baer discs
Re: backfires=off timing?
shorty headers, hooker muffler and exhaust system...i'm gonna check the distributor connections...i took out the stock module 'cause it was interfering with the accel 300 box...the car pulls like crazy and idles nicely...no surges or spurts....it just pops and bubbles whenever i decelerate......
08-09-2007, 06:37 PM
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Car: 88 Monte Carlo
Engine: 305
Transmission: Auto
Axle/Gears: Really Tall ones. Probably 2.73's
Re: backfires=off timing?
whats your timing? (base, total, all in rpm)
08-10-2007, 05:05 PM
#7
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Car: 89camaro rs
Engine: 350tbi (needs carb!)
Transmission: 700r4
Axle/Gears: 32x in process
Re: backfires=off timing?
i actually like the gurgling sound on declearation iuno i like to hear that remind me of old school hot rods
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