well a bigger carb wont be able to come for a long time. i got plans for a new rear end and a roll cage.

but it dont hurt to start shopping around. im not a fan of holleys at all i havent heard much about any other brand of carb and i love edelbrocks because they are very low maintenance and very user friendly. but i have plenty of time to shop

im just glad i dont have such a bad flat spot anymore it was getting really annoying

In the meantime just go up 1 # in the jets with the metering rods you have then. It should make it some what more responsive with the cfm you have. I agree with you that the edlebrock carbs are more street-able and user friendly. At least you don't have to tie your dad down to the fender to drive it anymore. lol

You don't need a larger carb and you don't need a spacer. What you need to do is to properly tune the carb you've got. Thousands of 350's are out there burning rubber with a 650 or smaller carb.

Start with the components that came stock with the carb, then customize from there to suit your particular needs. Here's the owner's manual for you to go by.......

http://www.edelbrock.com/automotive...ners_manual.pdf

From Edelbrock Q & A......
Q: What metering rods and jets do I need to run with my combination?

A: There is no “pre-determined” combination of rods and jets for any given motor, accept for altitude corrective applications, which is 4% for every 3,000 ft of elevation. Every engine is going to require a different fuel curve. The best thing to do is run the carburetor on the engine right out of the box to build a baseline, then check the spark plugs and see how they look. You need to have a light brown, or tan color on the plugs. If they are too white or too black, you need to make adjustments, refer to the tuning chart in your carburetor owner’s manual (download here). Plug reading gives you an accurate idea of what is actually taking place inside the combustion chamber. Please note, today’s re-formulated fuels can leave a lack of accurate colorization.

"Out of the box" means this.......
Metering Jets – Primary .095, Secondary .098; Metering Rods – .068 x .047; Step-Up Spring – Orange (5" Hg). Here are calibration kit part numbers.......
http://www.edelbrock.com/automotive...calibrate.shtml
And other stuff including pump shooter nozzles......
http://www.edelbrock.com/automotive...thun_perf.shtml

Optimal fuel pressure for these carbs is 5.5 lbs at the fuel inlet port on the carb body. Use a regulator or (preferably) fuel return line to modulate pressure. Mallory #4316 is a bypass type in-line regulator that could work well and be easy to install. Rig up a fuel pressure gauge. If using a wet line, DO NOT mount it inside the car. Mount it on the cowl where you can see it through the windshield. Better yet is a gauge with an isolator fluid. That way, you can mount the gauge in the car.

Start by removing the carb lid and setting the float level before you do anything else.

thats what im trying to do. customize the carb to fit my needs.






ill look into the jets in the next week or 2 i got an electrical problem i gotta take care of first. ill report back once i do the jets. they are cheap and cant cost to much like the rods (10 bucks). ya my dad was getting tired of cruise nights on McHenry the rope was digging into his hips lol.

well thank you very much and i shall report back after the bigger jets are installed.

"thats what im trying to do. customize the carb to fit my needs."

I understand that and I'm trying to help.

i thank you and apologize if i came off rude. ive just been dealing with this problem from day one with this carb. so im a little on edge about it. i have a copy of the manual in front of me and a calibration chart for my carb in front of me as well.

i saw that on the link for the nozzles it has 3 sizes 0.024 0.033 0.043. what size do i have??? i cant find it anywhere. i have a #1805. what ever size i have in there i want to go 2 sizes bigger. because i have the pump on the highest of 3 settings so i can set the pump lower if needed after the nozzles are upgraded.

Welcome to the wonderful world of Eddelbroke carburetors

Shane

well im just now starting to really mess with the tuning of it. but at least im not rebuilding a holley every other week lol.

my sisters little no performance 289 has a 600cfm edelbrock and i didnt change anything with that carb all i did to it was set the mixture screws for the idle and the idle speed. havent touched it since. . . .aside from cleaning it with some carb spray.

Do you have a fuel pressure regulator. Have you checked your fuel pressure?
Sometimes the fuel pressure will fluctuate when you hit the throttle.

i have the edelbrock performer series street fuel pump that is built to go with this carb. no need for a regulator. and there is no fuel pressure drop.



my dad told me that just b4 we pulled over to tighten the rope around his waist