Your opinion on this combo

I have just taken the enginge and trans out of the car for a major look-trough and upgrade.

Im going to change to a roller cam from hughes engines, eagle H-beam rods and possibly new pistons.
The trans will get a new 3800 stall converter from Dynamic and an overhaul with new clutches and so on.

I would like some input on my new combination so here goes:

340 block, bored 0.030. 4 bolt mains.
MP 4" cast stroker crank , Eagle H-beam rods.

Im planning to use Diamond pistons with -9.3 cc together with a cometic 0.040 headgasket. That would give about 11.3:1 comp.

Mopar Commando std port heads with porting done by Hughes engines and converted into open chamber( already done ) with ca 65cc with 2.02, 1.60 MP valves.
Flowchart : http://www.skandinavianmopar.com/Hughesflow.pdf

Matchported with the intake.
Intake is Mopars M1 single plane.
Carb will be a Mighty Demon 800 cfm.
Hedders are TTI step hedders.


Cam will be a Hughes engines solid roller cam with 254 / 260 @.50 lift ( dont remeber exact lift but around 580-590" )
Will be used with compcams 1.5 roller rockers.

The cars weight with me in it is about 3450lbs. The rear end ratio is 3:91. The car will be both street and strip, strip use as often as it gets.

How will 11:1 work on the street? Here in Sweden we run 99 octane and i usually add octane booster, i calculated that compared to the US octane number this would be 94octane with US measures. ( RON+MON / 2 )
Dont know if this is to much!?
The car rolls about 1k miles every season on the road and then sees as much strip action as it can ( about ten days a season ).


So what do you think about this setup? Is the cam to big or something else? thank you!

Chrippa