backfiring through the carb

loomis · 01-20-2002, 04:45 AM

i have a 83 ford mustang gt and i took all the smog stuff off and changed carbs. now from 800 rpms to 2000 rpms it backfires through the carb i tried different carbs but same thing. i think something is happening inside the intake manifold.

Stang Runner · 01-23-2002, 10:58 AM

what is the timming at?

loomis · 01-23-2002, 06:31 PM

my timing is set at 10 degrees advance but i moved the dist. everyway but loose. i pulled the 302 out of a 83 mustang gt and put it in a 83 lx that had a v6. i think i have to change wiring harnesses.

01-20-2002, 04:45 AM	#1
loomis Registered Member Join Date: May 2001 Location: omaha,ne u.s.a. Posts: 3	backfiring through the carb i have a 83 ford mustang gt and i took all the smog stuff off and changed carbs. now from 800 rpms to 2000 rpms it backfires through the carb i tried different carbs but same thing. i think something is happening inside the intake manifold.

01-23-2002, 10:58 AM	#2
Stang Runner Registered Member Join Date: Jun 1999 Location: Walker, MI, USA Posts: 1,202	what is the timming at? __________________ Engine: steel mounts, Under drive pulleys, K&N, GT-40 Intake ported Lower, No power steering, No A/C, Mac cold intake, 65MM TB, 255 Fuel pump, 24's, AFR 165 58cc, Rocker Arms 1.7with the stock Cam, 1 5/8 short headers, offRoad X-pipe Drive Train: 3.55, T-5 with a Pro 5.0 shifter 12.656@107.71MPH See It at www.T-racing.com/mustang.htm

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01-23-2002, 06:31 PM	#3
loomis Registered Member Join Date: May 2001 Location: omaha,ne u.s.a. Posts: 3	my timing is set at 10 degrees advance but i moved the dist. everyway but loose. i pulled the 302 out of a 83 mustang gt and put it in a 83 lx that had a v6. i think i have to change wiring harnesses.