added rear block from old 780 from 375 horse 396 engine also body from tha carb base plate from3310 6.5 power valves both ends80jetsfr 83back took carout felt like it picked up 50 horse now i can nail it rolling about 2000 rpms rear tirestarts spinning have not red plugs could be rich alittle would want it be alittle rich as to lean terry

 

OK, so let me see if I can understand what you did.....

You took the rear metering block and main body from an original 780 vacuum secondary carb (factory 396 375HP motor from the late 60s/early 70s) and swapped them onto a later model 3310 carb (universal perfromance 750 CFM vacuum secondary).

I don't see why that wouldn't work except that those parts might be worth more to a restoration guy than they are on your home-brewed carb. Holley makes a rear metering block conversion kit for reasonable money. And the main body on a 780 is damned near identical to the common 3310- not much to be gained there, in my opinion.

Those jets seem a bit fat, but who knows when you build a "Frankenstein" carb.

When you do a secondary metering block conversion on a 3310 using the Holley kit the secondary metering block does NOT have a power valve. And it comes with #76 jets installed which are the same size as the jet holes in the original metering PLATE.

If you're running #83 jets PLUS a power valve that's like running a straight #91 jet on the secondary side (power valve adds about 8 jet sizes when it's open). That's a LOT of fuel on the secondary side. Maybe it's what your motor wants but I thought I'd mention it to point out why I think you might be playing on the "fat" end of the tuning curve. Even on a mild blow-through turbo setup secondary jets in the low-mid 90s are typical. Without forced induction that's some really BEEFY jetting you're running back there.

 

Holy run on sentences, Batman!

 

what i dont get, is why he would misspell his own s/n. there is no E in camAro. sorry, thats a huge pet peeve of mine.

 

Did a carb "build" based on information he's heard on the street and is basically regurgitating underneath his hood which is FURTHER exacerbated by the placebo effect perhaps?

Sorry but Travis hit the nail right on the head.

 

hu ask for advice before nobody chimed in when iput what i did all that i get is tounge lashing whats wrong with tht picture again hu

 

changed jets 76 all aroundwill check plug tomm will post it still very responsive and by the way imiss sell camaro on purpose