carb tuning related info

[grumpyvette]

Id start by checking for vacuum leaks and verifying the timing curve

Id start by dropping or raising the fuel pressure to 5.5 lbs and verifying your getting a minimum of a 1/2 gallon a minute unrestricted flow

Id start at all four jets #70

Id install a NEW power valve and ID buy several,if your carb uses them, so I could play/exchange/test

http://www.summitracing.com/parts/PHP-15001/

http://www.summitracing.com/search/Bran ... toview=SKU

http://www.percyshp.com/adjustajet.html

heres a neat little option for the HOLLEY carbs, its not really In expensive but it does allow you to effectively change the fuel flow rates far faster than you could changing JETS, its basically a needle & seat valve that adjusts like the float levels do on a Holley carb, it comes with detailed instructions , and if you use a fuel ratio meter or an IR temp gun and read spark plugs it will allow you to adjust the fuel air ratio far faster and easier than jet changes will
this is the most consistently accurate I.R temp gun I've used for testing[/img]

http://www.testequipmentdepot.com/e...1100200223789&utm_content=All Extech Products
INFRARED TEMP GUN

start here, theres no sense in guessing

http://www.themotorbookstore.com/holley-carburetors.html

http://www.themotorbookstore.com/motuhocavo2.html

http://www.themotorbookstore.com/holley1.html

http://www.bob2000.com/carb.htm

http://www.mortec.com/carbtip1.htm

http://www.youtube.com/watch?v=eiRIfcrc ... _embedded#

http://store.summitracing.com/partdetail.asp?autofilter=1&part=HLY-36-181&N=700+115&autoview=sku

http://www.professionalequipment.co...hermometer-501-ds-42545/infrared-thermometer/

http://www.centuryperformance.com/vacuum.asp

http://www.carcraft.com/techarticles/carb_tuning/

viewtopic.php?f=55&t=1442&p=5524#p5524

heres where
a infrared non-contact thermometer helps diagnose mixture problems very quickly, but youll need one that reads into the 1400F range for the headers for quick diagnoses

viewtopic.php?f=44&t=579&p=743&hilit=+infrared+tuning#p743

http://www.professionalequipment.com/xq/ASP/ProductID.3461/id.22/subID.177/qx/default.htm

temperature range from -58 to 1832°F

I use this one :grin: (above) and youll need to learn how to read plugs (this may help)

http://www.chevytalk.org/threads/showfla...rue#Post1448415

heres A/F

http://www.rbracing-rsr.com/rsrgauge.htm

http://www.mummbrothers.com/SRF_Stuff/Secrets/Driveline/Air_Fuel.htm

http://www.airfuelmeter.com/english/

http://www.innovatemotorsports.com/products/lm1.php

http://thedynoshop.net/prod01.htm

http://www.dawesdevices.com/airfuelmeter.html

http://fastrides.com/articles/DoItYourself_AirFuelRatio_Gauge.html

http://www.fuelairspark.com/Products/Information/AirFuelMeter.asp

http://www.3barracing.com/product_3.htm

http://www.edelbrock.com/automotive_new ... manual.pdf

a few places to look for plug/ignition info

http://auto.howstuffworks.com/ignition-system.htm

http://www.ngksparkplugs.com/techinfo/spark_plugs/techtips.asp?nav=31000&country=

http://www.gofastzone.com/techtips/sparkplugs/sparkplugs.htm

http://www.acdelco.com/html/pi_plugs_ident.htm

http://www.autolite.com/framer.cgi?page=http://www.autolite.com/products/racing.htm

http://members.uia.net/pkelley2/sparkplugreading.html

http://www.atlanticjetsports.com/_techtalk/00000005.htm

http://www.strappe.com/plugs.html

http://www.babcox.com/editorial/cm/cm59910.htm

http://www.ngksparkplugs.com/techinfo/spark_plugs/partnumberkey.pdf

http://www.nightrider.com/biketech/spkplghnbook.htm

http://www.tsrsoftware.com/sparkplug.htm

http://www.gnttype.org/techarea/engine/plugs.html

http://www.dansmc.com/sparkplugs1.htm

http://www.ngksparkplugs.com/techinfo/spark_plugs/overviewp2.asp

http://www.pajjakid.com/ubipa/sparkplugs.htm

http://www.edelbrock.com/automotive/sparkplugs.html

http://www.bullittarchive.com/Maintenance/Sparkplugoverview/

http://www.powerarc.com/sparkplug.htm

http://www.carcraft.com/techarticles/64378/

http://www.wakularacing.com/TechnicalInfo.htm

http://www.geocities.com/MotorCity/Flats/3877/spark.html


http://www.rmlautomotive.com/ignition.html

http://www.bgsoflex.com/auto.html

http://ourworld.compuserve.com/homepages/JET_AV8R/Vision/Ignition/CDI.HTML

http://www.howstuffworks.com/ignition-system.htm

http://auto.howstuffworks.com/ignition-system1.htm

http://www.familycar.com/Classroom/ignition.htm

http://www.motocross.com/motoprof/moto/secontent/seign/ignprin/ignprin.htm

http://www.northwestautorepair.com/ignitionsystem.htm

http://www.boyleworks.com/ta400/psp/distcurve.html

http://www.chevytalk.com/tech/index.html


heres other options

http://www.davessmallbodyheis.com/


http://www.msdignition.com/

http://www.proformparts.com/catalog/distributors_GM.html

http://www.atlanticspeed.com/store/MSD Chevrolet Distributors.asp

http://www.holley.com/HiOctn/ProdLine/Products/IS/ISD/ISD.html

http://www.performancedistributors.com/gmdui.htm


Spark plug /ignition info

http://www.edelbrock.com/automotive/sparkplugs.html

http://www.ngksparkplugs.com/apps/car_truck_suv/default.asp?nav=60000&country=US

http://www.strappe.com/plugs.html

http://www.applink.net/cct/tips/plugwires.html


http://www.acdelco.com/html/pi_plugs_ident.htm

http://www.atlanticjetsports.com/_techtalk/00000005.htm

http://www.ngkspark.com.au/spark_plug_cross_ref_chart_index3.htm


http://www.strappe.com/plugs.html

http://www.babcox.com/editorial/cm/cm59910.htm

http://www.ngksparkplugs.com/techinfo/spark_plugs/partnumberkey.pdf

http://www.eric-gorr.com/techarticles/sparkplugs.html

http://www.gnttype.org/techarea/engine/plugs.html


http://www.tsrsoftware.com/sparkplug.htm

http://www.racinghelp.com/read_spark_plugs.html

http://www.ngksparkplugs.com/techinfo/spark_plugs/overviewp2.asp

http://www.gofastzone.com/techtips/Spark...20Reference.htm

http://www.geocities.com/zgarage2001/adv...01/advance.html

http://www.hotrod.com/techarticles/43300...harticles/43300

http://www.centuryperformance.com/vacuum....com/vacuum.asp

http://www.custompistols.com/cars/articl...tion_timing.htm

http://chevyhiperformance.com/howto/4567...com/howto/45673

http://www.lmengines.com/Ignition_Timing...tion_Timing.htm

http://www.73-87.com/garage/hei.htm]http.../garage/hei.htm




http://www.bgsoflex.com/auto.html

OPTISPARK info

http://www.gmhightechperformance.com/tech/0310htp_optispark/

http://www.charm.net/~mchaney/optisprk/optisprk.htm

http://www.fierolt1.com/lt1_95_up_OptiReplace.htm

http://www.noid.org/~muttvette/opti.html

http://www.gulicks.com/vette/projects/opti/index.html

http://www.houston-f-body.org/tech/optispark/


http://www.dynotech-eng.com/dynaspark.htm

http://www.corvetteclinicinc.com

http://www.corvettefever.com/howto/16758