Hey Ed i am still a few parts out on starting this re vamp , i want to have all the parts i need before i take it apart . The cam is a custom comp 232-240 @ .50 .559/.563 on a 112 lobe . This motor has been together for about 3500 miles maybe , stock out of the box Eds and a small hydraulic cam 228-235 @ 50 .538 on a 112 lobe . I am also going to a TKO 600 from a 500 , going to 3.89 from 3.50 s , and going to put my holley hp 850 on as well . I plan on putting it on the dyno , i am looking forward to a seat of the pants difference and would really like to see a solid 70 to 75 hp gain .. The first edition of this motor was nt dyno d , but after reading Jay s , Barry s books i wanted to change some things , to get 500 hp out of 435 inchs is only 1.15 hp per inch , 520 is 1.19 it should be doable somewhere in that range im thinking .. Bud