383 Carb Questions
#1
Registered
Thread Starter
Join Date: May 2017
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
383 Carb Questions
Ok so I'm new here, first post. Quick question.....am I nuts? Is there no clear place to get carb size requirements? Seems like every calculator I use gives me a different answer. I'm having a 383 built that's turning about 425hp and 450ft torque. The builder said a 750 eldebrock right out of the box would be fine. Not a fan. So I was thinking of going with a Holley 770 Marine Avenger, or a AED 750 http://www.aedperformance.com/compon...product_id,63/
However when I use carb calculators it's telling me I need 650cfm. So what's the deal? Can anybody shed some light on this. Sorry I know this is probably a total newb question.
However when I use carb calculators it's telling me I need 650cfm. So what's the deal? Can anybody shed some light on this. Sorry I know this is probably a total newb question.
#2
Registered
iTrader: (1)
Don't sweat the carb calculators.
You are correct. Dual plane intake def go with 750.
You are correct. Dual plane intake def go with 750.
#4
My brother has been running the Edelbrock 750 marine carb on his 383 for years without a single problem, http://www.edelbrock.com/automotive/...s/marine.shtml
#5
Registered
For not super H/P setups the edelbrocks do work very well, and the elect choke setups are great(they do not like to start with a choke) never seen a 750vs750 test but would love to see that. Mopars back in the day make great HP with AFB's which is what edelbrocks are nowdays
#6
Registered
the carb calculator is probably for street engines. you put your Camaro with 425 hp 383 at full throttle. inside of 5 seconds you are breaking every speed limit in the land. then you and your car spend 90% of the time at 10 to 25% throttle. a boat is closer to a big truck than a high perf car as far as the way the engine is run.