Some 360 engine improvements

Ok so right now here is my setup


71 year 360
.508 purple shaft cam
340 J heads 2.02 1.60 valves Casting number (3418915)
340 intake casting number (2531915)
Stranded bore with no valve relief flat top pistons
Long tube headers 3in collector
Holley 750 carb
Stock mopar electronic ignition

First thing is to get a sure grip under it so it will hook.


My question is what do you guys think the comp ratio is now as it sits as for as I know no machine work has been done to the engine.