Smallish roller cam for DD 318LA

The hell you say.

You can have your original cam reground by Oregon Cam Grinders for 125 bucks. They will mix and match ANY of their lobes and LSA's on their hydraulic roller cam chart at NO extra charge. You will have to get custom length pushrods, but on the end, Oregon will still save you some coin.
Why would I need custom pushrods ? Just asking ,I would think that I would be able to use the 85-89 LA roller pushrods, from a Diplomat 6.764" length ?? Not sure about that. Also not sure if I would need solid pushrods, or the hallow pushrods ?