gtxrt
Well-Known Member
if the stall is too high for the 3.23 when cruising it will be slipping
New 440 build issues
- Thread starter chermik1999
- Start date
Yuup...does
3000 would be fine if the cam was right. This don't kick in til 3800...what can I expect..stay tuned. I'll get it yet...on a mission.
That’s what I was addressing - you wrote “But still hits 18+ when pedal mashed” - that’s due to not enough accelerator pump delivery causing it to go lean when you mash the throttle.
So whatcha think?
gtxrt
Well-Known Member
what cam are you putting in ?
This guy
gtxrt
Well-Known Member
it's about 2 sizes smaller than the 509 should be good
You need a bigger accelerator pump shooter and/or move the link to the inside hole on an Edelbrock, or on a Holley style carb, possible a different pump cam, larger shooter and maybe a larger size pump.
If you are changing the carb out to this Brawler 850 you might as well wait to see what it does first. It may have a richer accelerator pump circuit on it that takes care of the problem.
If you decide to stick with an Edelbrock try moving the pump link to the inner hole and see if the AFR still spikes when you mash the gas. If it’s still high, but better, then see what size shooter jets you have on it and get a larger one.
Edelbrock 1475 Edelbrock Accelerator Pump Nozzle Kits | Summit Racing
If you are changing the carb out to this Brawler 850 you might as well wait to see what it does first. It may have a richer accelerator pump circuit on it that takes care of the problem.
If you decide to stick with an Edelbrock try moving the pump link to the inner hole and see if the AFR still spikes when you mash the gas. If it’s still high, but better, then see what size shooter jets you have on it and get a larger one.
Edelbrock 1475 Edelbrock Accelerator Pump Nozzle Kits | Summit Racing
That's what I'm thinking..get back some vacuum and bottom end
I have extra shooters to try. And I'm in the middle now..
Is a 35 on now. I have a 43 that can put on too.
Did you ever tell us what kind of car that WE are working on and show us a picture of it?
Haha...well I'm cheating. It's a 79 lil red express with a 440 727. I also have a 71 GTX to start next.
I didn't know where to place it tomget support.
But here's the next on the block with 440. This time with an edelbrock top end. Should be easy...fingers crossed
Guess technically that's what we are working on...
It's the PT I'm working on as a model to put into the GTX so I have no issues.
Here's what it looked like a few years ago. I got it from a guy that was trying to re do it. Had health issues, the sold it. Then that guy had health issues. So I'm next in line..lol
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