What carb came on 420 HP Engine?
#1
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What carb came on 420 HP Engine?
I'm having a hard time identifing my carb. Does anybody know what carb came one th 420 hp from Mercruiser. I know its a holly 4 barrel with no choke?
#3
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Re: What carb came on 420 HP Engine?
This carb has no choke bowl so I cant find the serial numbers. The only number i found was 8543 with a 4 under it on the top right hand side of the float housing?? Mercruiser said it should be a 4781 but when I go to holly the 4781 looks different. ??
#7
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Re: What carb came on 420 HP Engine?
9022 is correct.
Here is the basics on the set-up from Holley. I don't know
if Mercury rejeted these or not:
800 CFM 4150 Marine
Front jets: 72
Rear Jets: 87
6.5 powervalve in primary
Compare to what you have now in the carb. The guys are
right, you may not have the factory carb.
OR
Here is the basics on the set-up from Holley. I don't know
if Mercury rejeted these or not:
800 CFM 4150 Marine
Front jets: 72
Rear Jets: 87
6.5 powervalve in primary
Compare to what you have now in the carb. The guys are
right, you may not have the factory carb.
OR