okay so i am new to fords always been a chevy guy,anyway i sold the 302 c4 combo out of my 73 for 700,and found a 429 c6 from a 71 grand torino with 78k on it for 650.....my question is that,is a 429 a good performance engine like as is a 427 chevy to a 454 chevy?? Did i make a good deal or am i...