Anyone know of race calculators by weight/engine dyno/converter loss etc to help with building our cars- having realistic expectations and meeting them and/or helps with figuring out whats wrong when we don't meet expectations?

Secondly- can i get real world numbers from folks here running Dusters- weight/engine/hp/et ?
Would like to get to 10.0 with engine we have but not sure thats realistic.

650 hp ( all done at 6 k )
9 inch- 4800 stall /built 727
11.5X29.5 tire
8.75- 4.10 ( I can change gear, just had these here already)
cal-tracs/mono leaf
gerst tubular k/ifs
should sit at 2900-3000 lbs with driver ( =/- a tad ) caged/frames connected /boxed etc.

We mostly run 1/8 mile here.

Thanks guys- just trying to do my due diligence .