Hi! I have a pretty new built Mopar 499cui stroker based on an a 440 -78 block. Here comes the engine specs( i add the camcard).
Mopar 499cui 10.95:1 cr, dynamic compression 7.49:1
Quench distance 0.078"(piston down the hole 0.039" and the gasket 0.039")
Eagle 4.15 crank
Eagle H beam rods 6.760
Mahle 4032 forged flattop pistons
Indy ez 270cc 75cc cylinderheads
Howard custom grind hydraulic roller 251/257@050
Morel lifters
Manley 3/8 pushrods and prw stainless steel roller rockers
Edelbrock pro flo 4 4150 style with 60lb/hr injectors
Main girdle and alu caps
Main bearing clearance 0.003", rods 0.0026.

The efi control the timing, i set initial, advance start at what rpm and total timing at what rpm. The system allow for 10 degrees vacuum advance. I have it set right now at 20 initial, advance start at 1200rpm, total 31 at 3400rpm and no vacuum advance. It feels like i can gain some from a other curve. Im running fuel same as yours 93 octane. What do you guys think?