Back to the drawing board... stock low dollar 360

What Rusty said
427/454 260/[email protected] 204/216 112 LCA Crane 693901 1,500-4,500 H-260-2 aka HMV-260-2-NC oldie but goodie (similar to 256 @.006comp)
the long exhaust will extend rpm range and can do without headers- that's why the long exhaust (single pattern cam is deadly with stock heads and no headers)
but headers always really help SBM but keep them small and long or tri Y in this case
I think the single pattern Cam Dynamics my be the same or very similar intake lobe but is single pattern
.427 260 204 110LCA 260H10 Cam dynamics 15003 Ed Hamburger also sold this one headers would be mandatory to get any benefit- like the single pattern Edelbrock cam