Ok my 305 needs bearings and a new oil pump. I could just do that and save the rest of the money to do the rear end and a few other upgrades. Or I could get a 350, Pontiac 455, or a Buick 455. My question what should I do. Getting the 455 would require a new tranny but that shouldn't be a problem. Right now I have a 700R 4 but I'm trying to replace that too. Which one of these engines has the most potential? Thanks in advance for your input

 

anyone have any suggestions??