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Holly 4150
Picked it up for $20.00 today at a Garage sale
The owner told me it was Re-Jetted for his Big block chevelle
What jets would be a good starting point for my car??? I've heard (but can't find) of databases that can get you close to the proper jet sizes.
99 vortec 350 w/ GM Hotcam & headers
Any help would be nice... I'd rather not waste hours Re-Jetting when I know someone has the Info I need
John
4150's had different cfm sizes. Got a list number? On the airhorn.
4777-5 650 Cfm
That is correct for a 4777-5 carb..... But is that the correct carb part # for a Vortec 350????Quote:
Originally Posted by DennyW
Denny is probably right, but I think 67's in the primary might be a bit too stout. I ran a 650 DP on a 400sbc with a fairly healthy cam and ended up with 65's in the primary to keep it from running too rich. What size of pump shooter does it have in the primary and what size accelerator pump housing in the primary?
That's what came in the 4777-5 carbQuote:
Originally Posted by DennyW
This carb has been Jetted for a BB chevy so I'm sure it's all wrong!:D
I've not tore it down yet so I don't know what's in it now but I'm sure it's all wrong ( being set up for a BB) and I'm just looking for a good starting place For my vortec 350:D
Talk about lucky!!!
I Called Holley and asked them what carb would be for my set-up and..... It's the correct carb # for my car/Engine:D
So I'm going to get the re-new kit from Holley and have a nice little INDOOR project for these HOT summer nights putting the stock Jets in my carb & going through it.