Whats the best rod ratio for a 347 kit, one that doesn't have the oil ring going around the wrist pin of the piston, going to be exchanging my 331 kit for a 347 kit, its got ascat 9000 series crank and pbm forged aluminum pistons. Also my block has been bored line honed, decked etc. it should be .30 over at least thats what i told the machine shop, anything else have to be donefor the 347?