Originally Posted By fast68plymouth
Change the cam when the new or updated heads go on.



I agree. My 500 loved my old 690 lift cam and the springs lasted forever. May not be what you are looking for but hey, we are good at spending others guys money. Lol.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time