Hey guys im new to olds but i bought a old 75 jet boat with a 455. It had a bad knock but came with another motor. Well come to find out they both spun bearings bad and one had a crack in the block. With some research i found out that they are known to spin bearings.

But what i am wanting to know is how much hp should i be making with a olds 455?

My motor

455 .30 over (just honed with new rings)
Crank polished
rods reconditioned
Lined bored (not lined honed)
moroso 8qt oil pan
stock cam i measured around .480 lift
elderbrock torquer intake
750 or 850 double pumper holly (havent looked it up)
strait through exhaust
Ka heads that have been cleaned up and lapped.
Hei distributer

Pretty much a stock motor but im seeing 455s with 190hp to 390hp stock... hoping for upper 200s?

thanks
kevin