I have to change the fuel pump on my sea strainer! Maybe a dumb Q? But I've been trying to get the holley 110 GPH pump # 712-454-11. No one has it and the local store has the 12-454-11 but its for the car no vent tube! Well my vent tube has been pluged and not working sence last year! Any how I just freshend the motor and need to change it! Q? Is can I use the 12-454-11 or just order the right one, and wait a few more days! Either way no biggie the other one is just here if I can use it with no vent tube?

1 left in stock. Hurry !

http://www.amazon.com/dp/B000M27VQC/...l_6pxnaqcmi7_e

I'm assuming the fuel pump you have is on your sea PUMP, not sea strainer. If so, a regular holley pump designed to be used on the engine block, won't work. The arm is different

Mild thunder! Thanks didn't even think about that! How much H-power do you think the stock pump will support?

so what pump fits the raw water pump?

This one.
http://www.cpperformance.com/p-12460...6-engines.aspx

This is the only upgraded sea pump mounted fuel pump that I know of. Other than that, remove the pump, install a block off plate, and go to an electric pump.
Eddie

Stock pump from what Merc engine????
There are different part numbers for the fuel pumps on different Merc engines.

CV products makes one. Many have used it.
http://www.cvproducts.com/Products.a...h=SPIN-MP-2630

A thread on OSO:
http://www.offshoreonly.com/forums/g...fuel-pump.html

Ok so what's a good elec. pump that yall are running that will handle 600-650 hp with no bypass set up! Holley, aeromotive, magnafuel, etc. I wanted to keep my sea pump, pump but I guess I could go elec. he'll some elec are the same cost lol