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03-20-2011, 07:13 PM
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#1 |
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Senior Member
Join Date: Jan 2008
Location: sand mountain
Posts: 463
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Carb Size
Was wondering if a 650 quick fuel carb is to big for a 302 with afr 165 heads and a bigger cam. I know a 600 carb is sufficent enough... just wondering if the 650 is too big for this combo?
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1990 lx 302 w/trickflow intake, b-303 cam, tremec 3550 ,spec stage 3 clutch, crane 1.7 rockers, under drive pulleys, bbk full length headers, and x-pipe,3:73 gear. AND....... 
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03-20-2011, 07:28 PM
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Nothing new here
Join Date: Dec 2004
Location: Senoia, GA
Posts: 2,990
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I ran a 650 square bore holley mechanical double pumper on my '85, it had heads that would be about what the 165's are, about 10.5:1 compressions and a 500 lift roller cam. In my racing the car ran 3500-6000 for about an hour at a time so I wanted the ability to run a little fater to keep things cool. I never did tune the carb, but on a chassis dyno pull it registered a 12.5 AFR (as I recall).
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1974 Triumph TR6 1985 Monte Carlo SS 1986 Mustang GT 2011 KIA Optima GTS |
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03-20-2011, 07:46 PM
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#3 |
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Senior Member
Join Date: Aug 2010
Posts: 221
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I would think that would be ok.
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03-20-2011, 08:37 PM
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#4 |
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Member
Join Date: Feb 2009
Location: sand mountain
Posts: 58
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robert, you should be fine with that. i ran a 780 pro systems on my 347 combo. you might have to do a jet change or two. allen
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87 gt, 2003 mach1 |
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03-21-2011, 10:27 AM
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#5 |
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Mind Blowing
Join Date: Jun 2006
Location: Dawsonville Ga
Posts: 3,913
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i think it will be good but may have to play with the jets. a wide band would be your best friend
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Slow Joe Racing 2008 dodge ram 5.7 HEMI  1993 lx with a 289 and a 3 speed on the floor WTB 1955 t-bird project |
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03-21-2011, 11:57 AM
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3v's are slow
Join Date: Dec 2004
Location: Here and There
Posts: 17,152
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what's a carb
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2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP  2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy |
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03-21-2011, 12:02 PM
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Dazed and Confused
Join Date: Mar 2009
Location: Northport, Al
Posts: 778
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Quote:
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Proud owner of 93 Cobra #1928  306ci Forged flat tops, Windsor Sr iron heads, FMS X-303 cam, OE Cobra upper and lower, 65mm tb, 70mm maf, 24lb injectors, BBK shorties, Summit H-pipe and Flo-bastards |
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03-21-2011, 02:42 PM
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#8 | |
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Senior Member
Join Date: Jan 2008
Location: sand mountain
Posts: 463
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Quote:
 ... is this something u have seen happen before or heard of happening just wondering what your thoughts or everybodies thoughts is on this
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1990 lx 302 w/trickflow intake, b-303 cam, tremec 3550 ,spec stage 3 clutch, crane 1.7 rockers, under drive pulleys, bbk full length headers, and x-pipe,3:73 gear. AND.......
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03-21-2011, 03:00 PM
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#9 |
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Mind Blowing
Join Date: Jun 2006
Location: Dawsonville Ga
Posts: 3,913
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TFI heating up?
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Slow Joe Racing 2008 dodge ram 5.7 HEMI 1993 lx with a 289 and a 3 speed on the floor WTB 1955 t-bird project |
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03-21-2011, 03:15 PM
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#10 | |
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Senior Member
Join Date: Jan 2008
Location: sand mountain
Posts: 463
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Quote:
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1990 lx 302 w/trickflow intake, b-303 cam, tremec 3550 ,spec stage 3 clutch, crane 1.7 rockers, under drive pulleys, bbk full length headers, and x-pipe,3:73 gear. AND.......
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Linear Mode
