what about a set of 1.7 that would gove a .030 more lift and also i am looking at a set of chrome moly one piece push rods but it says for use with guide plates will it work without them? if not what kind of pushrod should i get? also i know i need new springs. the motor has 98000 miles on it. should i get duel springs of just stock ones i was looking at a set of ford racing duel i also want to put a e303 cam in the block. thank you for the help