March performance vs cvf pulleys on 340

Walllace racing blower ratio calculator shows you are going to be running the water pump and fan 19.23 percent under-driven. I recommend a good aftermarket waterpump, either a flow cooler or one th eductile iron impeller one and to macke sure the rest of the cooling system is up to snuff.

I filled in some more info and my actual pulley specs in post 4. Thank you for taking the time to calculate it.