I am still working on my 331 motor for my Bronco, and while it is tempting to stick on my old 1991 Paxton...I am wondering if it fails will I have full driveability of the truck? Limping home is not an option...I go way way out in the desert so reliability is a must. I am leaning towards a custom cam versus the Elgin E-1017-P that Coast installed when building the motor, and maybe a 50 shot for $hit$ and giggles since if the N20 fails I can still drive the truck. Please advise, I need some reliability out of this powerful mill.