Time for a new carb and not sure of the size I should get. I've check a bunch of the online calculators and get different numbers, even when using the same VE, engine size and RPM. Also, I would think the choice would be different for a boat.
So here's the engine specs:
Current carb: Barry Grant Silver Claw 850, about 20 years old. If I remember correctly, they flowed more than advertised.
I have to confess, I never played around with any changes and this carb, even though I really wasn't happy with the way it ran.
9.5-1 compression, according to the builder
ISKY Z-77 cam .342 cam lift, Valve lift .590 Duration 310, Flat tappet
Heads have be ported and gasket match, along with the intake
Intake is a Chevy Aluminum, I think they were made by Weiand dual plane. The divider has be machined down, about 3/8 of an inch.
Redline approx. 6500 rpm
I'm guessing stick with a 850 CFM Double pumper carb with Mechanical secondaries?
Thanks for your input.