Thanks for the reply. The motor is a 68 and the car is a 68 coupe. The enternal parts (cam, pistons) of the motor have been modified so when I ask for spec I mean to say original cam size, etc. I didn't realize that the enternal HO components where the same, except for RA, as the standard 400s. Let me know of the web sites I can visit that will provide the info. Thanks.
