miss at slow acceleration and cruise - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Sinister · 04-06-2010, 02:56 PM

Quote:

Originally Posted by Sinister

I think you need to tune your carb.

See Above.

Mertz · 04-06-2010, 04:05 PM

I think that you have a lean surge. Running lean causes the engine to run hot and could cause the plugs to get really hot and maybe what is causing the glow. Try tipping in the choke flap when running at 2000 rpm and see it the engine speeds up. If it does it is lean.

drewdude92 · 04-07-2010, 01:30 PM

thank you mertz ill try that tonight if i keep the edelbrock on long enough to mess with it. Im puttin a 750 double pumper on it once i go get it =)

longhorn396 · 04-09-2010, 01:40 PM

Ur timing is probably to fast. when the motor is cold is it hard to start?? i was having the same problem and i fixed it this morning by back the timing down.

EDIT: dont know about the plugs though

drewdude92 · 04-09-2010, 01:47 PM

ill try to retard it a little more i guess. And no it is not especially hard to start when cold.

Jacfourteen · 04-10-2010, 12:44 AM

usually if it is too advanced it will start ok when cold then after it warms up it'll crank slow then fire.

04-06-2010, 04:05 PM	#27
Mertz Registered User Join Date: Aug 2007 Location: Reardan, WA Posts: 132	Re: miss at slow acceleration and cruise I think that you have a lean surge. Running lean causes the engine to run hot and could cause the plugs to get really hot and maybe what is causing the glow. Try tipping in the choke flap when running at 2000 rpm and see it the engine speeds up. If it does it is lean.

04-07-2010, 01:30 PM	#28
drewdude92 72 chevys 4 life Join Date: Aug 2008 Location: Crescent,Ok Posts: 406	Re: miss at slow acceleration and cruise thank you mertz ill try that tonight if i keep the edelbrock on long enough to mess with it. Im puttin a 750 double pumper on it once i go get it =) __________________ I dont call it being young and dumb....I call it young and havin fun

04-09-2010, 01:40 PM	#29
longhorn396 S.D.M.F. Join Date: Jan 2007 Location: Westport, In Posts: 639	Re: miss at slow acceleration and cruise Ur timing is probably to fast. when the motor is cold is it hard to start?? i was having the same problem and i fixed it this morning by back the timing down. EDIT: dont know about the plugs though __________________ 1969 Chevy Longhorn 396/400 3/4 ton. 1991 Chevy Camaro RS 305/700r4 1978 Honda XL175 and XL350(the evil twin) 2006 Kawasaki ZX-14r drag bike-best e.t. 9.4@145 mph without nitrous 1971 BSA Thunderbolt 650cc Last edited by longhorn396; 04-09-2010 at 01:41 PM.

04-09-2010, 01:47 PM	#30
drewdude92 72 chevys 4 life Join Date: Aug 2008 Location: Crescent,Ok Posts: 406	Re: miss at slow acceleration and cruise ill try to retard it a little more i guess. And no it is not especially hard to start when cold. __________________ I dont call it being young and dumb....I call it young and havin fun

04-10-2010, 12:44 AM	#31
Jacfourteen Big Red - Now its a SWB! Join Date: Jun 2009 Location: Oroville, Ca Posts: 1,624	Re: miss at slow acceleration and cruise usually if it is too advanced it will start ok when cold then after it warms up it'll crank slow then fire. __________________ 68 3/4 ton (Project)-350 Small Block, .030 over, 10:1 comp, 3998993 heads, C3BX edelbrock intake, comp cams XE268, Holley 670 SA, long tube headers, dual flow 40's, E-fan, Alum rad, currently under the knife getting shortened and bagged build thread 41 3/4 ton (wife's)-flatbed, fully restored to original 01 Tahoe LT 4WD (my daily driver)-Magnaflow Muffler, Rollin on 22's 02 Ford Mustang Convertable (Wife's Car)-Flowmaster 50, Clear corners, Intake, sittin on 18's



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