hey i got a stock LG4 with over 100,000 on it...yeah well i bought a 355 so im sellin my LG4 but anyway, i might already know the answer to this but there are some pretty amazing people here on TGO so ill ask anyway... camaro is auto and say i floor it in any gear, it feels like it starves like gas isnt gettin in the carb or the carb itself it junk...i also confronted the guy who i bough this from but he insistes that it was rebuilt, but this same guy put a 2 1/2 inch y pipe in to a 3inch cat cuz he didnt wanna pay for the 3inch y pipe...and also didnt finish welding the cat to the 3inch cuz it was "hard to get at"...this can happen anywhere in the rpms but is more commen between 3000 and 3500 i donno y but thats when it seems to do it...feels like a bogging but im not sure so i... some of my friends also think it could b some of the emissions i have because its all still there just no blet to the air pump and i looked all over the carb and emissions can and i saw no unbluged unclamped or exposed holes, vaccums, etc...
thought id post about it
thanks for any help
cullen

 

Rebuilt doesn't mean it's tuned.

You should get a dwell meter or scantool that you can watch while driving to see where the dwell of the primaries is. This will tell you if it's adding or removing fuel on the primaries.

If the travel of the primary rods isn't set right, then you need to adjust the rich / lean stops so that it has the correct overall travel. If it's running lean, you need to adjust both stops towards the top of the carb with the same overall travel.

That's the tip of the iceberg.

The secondaries have much adjustment as well. The main thing is that the spring tension for the airdoor is set correctly, and there's a vaccuum break on the Pass.Side front of the carb which can change the rate at which the sec. door opens.

You need a few things and then you can make your car run hard.

The tools: http://monte-list.nu/tech/q-jettools.shtml

The book: Rochester carbs by Doug Roe.

There's a lot of good info on this forum about the CCC carb but it's intermingled with other carb info so it'll take some searching.

You can make it run hard; it takes time & tuning though.

edit: forgot to mention that you should see VISIBLE fuel pump into the primaried if you're standing over the carb. This is from the accelerator pump. This makes the transition from cruising to accelleration smooth, else the engine would starve for fuel for a bit.
-Matthew