Your goals are acheivable with the correct parts, I've done it with 9.5 to 1 compression, 906 heads with 2.14 intake valves and 1.81 exhaust with mild porting and the Performer RPM intake with a 4781 850 Holley D.P. carb more than once
![up up](/ubbthreads/images/graemlins/custom/thumbs_up.gif)
The cam needs to be big enough to flow a lot of air and have more than 6000 RPM at peak HP, which means as much lift as posssible
![up up](/ubbthreads/images/graemlins/custom/thumbs_up.gif)
The old school cams got left in the dust by progress
![shruggy shruggy](/ubbthreads/images/graemlins/custom/shruggy.gif)
The last one of thos pump gas motors I built and dyno had a Reed solid lifter flat tappet cam with 104 LSA and a lot of lift, I don't remeber the grind number now but look at Reeds selection on BB Mopar cams and go from there
![scope scope](/ubbthreads/images/graemlins/custom/scope.gif)
Good luck, let us know your results
![thumbs thumbs](/ubbthreads/images/graemlins/custom/thumbs.gif)