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Which jets and metering rods will work best in a 600 cfm edelbrock carb on a Chevy 305 with hei headers edelbrock performer cam and intake?
Wiki User
∙ 14y ago
The ones it came with from the manufacturer. If only it were that simple, I would be out of a job. Guys like that make me money so I guess I won't complain. Rule #1 of carb. tuning eliminate all variable that are not the carburetor. Your main target is the distributor, is it a stock GM HEI, if so you will need to pay attention to the mech. and vac. advances. The mech. is usually stuck, rusty or worn out. In any case it will need cleaned and greased, also the springs are probably too stiff for performance use, install lighter ones. You will need to limit the vac. to between 8* and 12* degrees, I like the vac. can from 454 motor homes it's a 10* can and works well on street cars. If set up properly you have a advance curve of 12* to 18* initial timing, with the vac. advance disconected and the motor reved up to 3,000 RPM or whenever it stops advancing, you should see between 32* and 36*. Now plug your vac. advance in and repeat, now you should see between 40* and 48*. Make sure to plug your vac. advance into the small passenger side vac. port at the front of the carb. as it is ported vac. you don't have enough valve overlap to need the manifold source on the drivers side. After you get your timing somehwere in the ballpark hook up a vac. gauge to the driver side vac. port and take a reading. If the motor is warmed up and off the choke you should see about 15" of vac. with that cam. The more inital timing you have the more vac. you will see but don't just crank a bunch of initial into it to get a high vac. reading you will be going the wrong way. Set your curb idle speed to between 750 and 850 RPM, make sure it's not dripping fuel out of the booster venturiis, recheck your initial timing and make sure you have no vac. signal on the front passenger side vac. port. Your forgot to mention if you have a 1405 or 1406, the 1405 manual choke carb is jetted .007 richer on the primary side, way too much jet area for a mild 305. If you have a 1406 just swap the main jets front to rear and install a different set of power piston springs, factory jetting is .098 front and .095 rear. Leave the stock metering rods alone for now, they should be okay, 75/47 for the 1406. You can use the plain silver or pink ones, the silvers will give you more power the pinks a little better economy. They are usually a little rich on the primaries even with the leaner factory jetting and a little lean on the secondaries especially with headers, cam and manifold. Just make sure to change out the step up springs, they sell for like $8 at the auto parts store. Also make sure to adjust your trans. kickdown properly, and check for wide open throttle, make sure your secondaries are open at WOT, with the engine off of course. Good luck let me know if you get it figured out.
Andy Stafford
Performance Tuning
509-521-2910
Wiki User
∙ 14y ago
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How much horsepower would a stock GMC 305 have if you put an edelbrock performer intake edelbrock carb headers and a summit cam with 282 int and 292 exh?
around 220hp i would say
How much more horsepower will headers and elderbrock intake help?
well you see the timematic conversion of the thirteenth neo is greater then the torque of edelbrock... so no
Will a edelbrock performer 2101 intake help a stock Chevy 305?
Maybe a little, but not much. If you're removing an iron intake, you'd save some weight.
How well will a edelbrock torker 2 intake manifold and a 650 cfm edelbrock carb work on a Chevy small block 400 in a 4x4?
The torker 2 is a single-plane design, so it won't work as well as a 2-plane such as a Performer or Performer RPM.
What should the timing be set at on 1986 Chevy 305 with edelbrock carburetor and intake with headers?
Try 12 degrees initial and see if it pings. If not, try a little more.
What is the torque spec on an Edelbrock aluminum intake manifold for a 78' ford 400m?
Here is the installation instructions for the Edelbrock Performer aluminum intake manifold for a Ford 351M/400...hope it helps out. http://www.edelbrock.com/automotive_new/misc/tech_center/install/2000/2171.pdf
What would the estimated horsepower be on a 383 with cam headers pistons edelbrock intake and carb?
without swaping heads or getting head work done your looking at approximatly 400 hp depending on the cam and intake and carb match.
What intake manifold should you get for your 92 chev 305 with a holley 600 cfm carb?
A 2-plane manifold such as the Edelbrock Performer or similar would be a good choice.
Hi i own a 83 cutlass supreme with a 305 i recently bought a edelbrock 650 thunderseries carb and a edelbrock performer air gap intake just wondering if they'll be fine with a stock cam?
Im gonna say it will be fine, I have a 84 with a 307, just got a performer 600 carb with the 2711 performer intake! You should be good to go, its when you go higher. Although, they say dont go any higher than a 600 on a stock 350 olds :/
On a small block 305 with a edelbrock preformer intake and an edelbrock 600 cfm carb and headers with hei where should the timing be set how many degrees.?
With the mods you describe I would suggest you start at about 10 to 12 degrees btdc. you may have to play with it to get it just the way you like it. Hope this helps. Mike
How much hp does my 350 have with 40 over flat top pistons vortec heads 1 point 6 roller rockers comp 268h cam headers and edelbrock intake?
375 sound right?
Can you install carporator type eldbrock for 305 engine 1986 without changing the top part of engine?
Or from autozone you can buy a quadra-jet to standard adapter plate if you don't have that edelbrock or if you have a holleythe intake manifold is hopefully what youre talking about and the answer is noAnsweryes you can. if you have a stock intake manifold, which uses a quadrajet carb, you can use edelbrock part number #2696 which you can buy from summit racing (www.summitracing.com). it allows you to use an edelbrock performer square bore carb on the stock quadrajet manifold. for that motor i recommend the edelbrock #1406 which you can also get from summit.
