Got the OK from my dad about adding 2 cylinders to the boat, looking at a 325 hp 350" sb, going to put that in, a drive shower, new labbed prop, and thru hull exhaust.

Is a strait through exhaust louder than 90 db?

Should i get corsa silenced tips ( 388+hoses and clamps)
What about the rest of the exhaust system

electrical fuel pump wher can i find one?

What size carb and which brand??

Heres the engine: http://www.1800runsnew.com/gm04.htm

Hey Hyper,
I think I have a 454 Mag quadrajet that I took off my old boat. I might even have the bracket for the throtlle cable. If you want it let me know I'll give it to you. I'll look tomarrow.
mike

A 23 to 5k??? more like 10k!! it has the 1.84 gear ratio. A 26-27" will keep it under 5 k. I need to call a few places about installation and such....