1996 slt 700

[midnite3025]

ok i just installed a new engine in my slt here and i would like to pre mix this from now on what must i do here besides mix the gas what ratio i have heard you must richen the engine up

the engine on this bolt broke a rod which looks like from heat it looks like it pulled it off the crank but i installed a new engine but with same oil pump i just want to make sure this one does nut burn up