Great info Bill-I actually had spoke to many cam company's and they all wanted me to install a BIG cam,example anywhere from 274 to 284 @.050 on the exhaust.I only have a 4800 converter and use a 9x30 slick,so I had the cam I use,comp,ground to my specs,which is listed in the first post.I added a little more on the exhaust to kill some torque because of the small tire.I've only got to run at my home track once,which was 92* and 4,000 ft corrected altitude since new motor and it ran 10.42@128.