38/38 Weber too big?

[paullen]

Right I'm fed up with the 38/38 bogging down from low revs. Is it possible to just run smaller jets and run it a bit leaner of am I going to have to swap it for a 32/26? The trucks done about 1000 miles on the carb, it goes great when the revs pick up. The MSD 2-al did help, but it still hesitates from low revs.

Can I keep my adapter plate and just swap the 38 for a 32/36?

[paullen]

I was looking on one of the UK sites that stock webers and it seems they might have a solution to the flat spot

http://www.fastroadcars.co.uk/shop/inde ... ductId=199

They mention 'modified idle air bushes '...means nothing to me.

[camoit]

you can always try diferant emulshon tubes and air jets. thats the ones with the all the little holes in it. This will change how the power comes on. i changed my jets and emulation tubes along with the air jets. Now she is just a touch lean in the high Rpm. 1100 to 5500 she puls like a raped ape. Flat around 5600 to 6000. But thats pushing it with out doing lots of bottom end work. To much recip. mass. No ballance shaft. Had it internaly ballanced.

[77amc]

I'd trade ya straight up for my 32/36 on my 2.6..?
It wasn't rich enough and was backfiring(?) Did change idle/mains/air jets.
SMooth now but am doing suspension work so its' down right now.

PM me..

E

[shultz]

Installing a bigger cfm carburetor is like pouring a gallon of gas straight down the intake unless you have the correct head & cam combo. I never laugh my ass off so hard when I see somebody say they got better performance installing a Weber 38 on their bone stock 2.6 with a header. Some of you people need to do some research on carburetion and learn about the benefits & disavantages of installing a bigger carburetor on a bone stock engine. You will not, I repeat...(WILL NOT) get a carburetor to function properly such as getting flat spots out, without doing some custom jetting. Do you think Weber made carburetors for our trucks tailor made? Hell no they didn't!! I can assure if anybody is having a problem with flat spots with a 38 Weber, it's because the engine is getting too much fuel!

WELL SAID!!!