hi, i'm Karsten from northern Alberta Canada. i have a 1974 challenger, have owned her for 5 yrs now all stripped down trying to get her done. She had a 360 but replacing it with a 440, 1 of my many ?s is what do you guys and gals think about the mopar purple cam 292 509 lift hydraulic, is that to big for street use and highway cruising. Have 727 and 355 gears, i really want the lopey idle, i also have edelbrock rpm intake and edelbrock rpm heads. still need carb and hedders, compression will be about 10.5 to 11. Does all this sound like a good choice for a rebuild. All replys will be greatly appreciated. Thank you Karsten.