Im currently building a car to run in C/Gas (will run some SEGA races so adhering to their rules) but its mostly for fun for me and the family to take to the track and beat on. Im wanting to build a real solid 289 that revs to the moon for it, any of you guys built one with a ton of compression? whats the best cast iron heads to run? and any intake style better than other? Any helpful info will be awesome, the cars running a toploader 4spd and 9" with 4:56 gears out back and weighs in just shy of 2900lbs with me in it.