Good Carb Tuning Info?

[BlitzA64]

I have been racing circle track with Mechanical Fuel Injection and Alky since 1985 now switching over to carby and gasoline. Is there a good book or site explaining the tuning of carbs for fuel curve on the dyno? Thanks

[PackardV8]

Are there O2 sensor kits with enough memory storage to allow the tuning to be done on the track? Will the fuel you're using contain lead?

jack vines

[BlitzA64]

I have Racepak for O2. My point is I don't know what to do to "change the curve" We are stuck with a class carb that is too small so it will need a lean out at rpm due to the increase in vacuum. I did find a pretty good thread that explains a lot, I just don't want to ruin a metering block that is pretty close by drilling. Thanks

[Geoff2]

David Vizard's Holley book, S-A books #216.

[GARY C]

A good start is your BSFC numbers on the dyno.
http://www.speedtalk.com/forum/viewtopic.php?t=51911

[bigfoot584]

Add this to your web site searches, excellent carb info.

https://www.tapatalk.com/groups/racingf ... f37581a192

[BlitzA64]

Thank you!

[MadBill]

A good start is your BSFC numbers on the dyno.
http://www.speedtalk.com/forum/viewtopic.php?t=51911

But keep in mind B.S.F.C. alone can be deceptive, as it is a measure of efficiency and many factors besides AFR affect it.

[GARY C]

A good start is your BSFC numbers on the dyno.
http://www.speedtalk.com/forum/viewtopic.php?t=51911

But keep in mind B.S.F.C. alone can be deceptive, as it is a measure of efficiency and many factors besides AFR affect it.

Good to know.

[BILL-C]

How "too small" is carb? 2 bbl carb? 650 ? How big is engine, hp,rpm?

[BlitzA64]

600 Holley, 360ci, as cast Dart Platinum Iron Eagle. Curve is ok but I need to lean it over 7,000 where it starts to really pull on the boosters if possible. I am basically trying to learn what changes may help so I know a bit about what to try on the dyno. After reading what I can find and from the areas above it seems to be MAB and or emulsion circuit changes.