1970 Cuda 496 10,3 sec

Hello Guys ! Im Raf from Italy .. I have a 70 cuda with 500 ci .. Drag car ...in Italy .. We have 4/5 race at year .. My best ET is 10,33@135 1,53 60 ft ...this is my specs :
1970 cuda
440 bored at 4,36"
440 source 4.15 crank
H beam rod
All balanced
Ross flat top pistons 12:1 cr
Total max seal rings ..gapless top ring
Indyheads 295 ez all polished and CNC
Roller camshaft .670 lift
Roller rockers harland sharp 1,6
Cometic head gaskets multilayer
Indy single plane intake
1050 quick fuel carburetor
Shot nitrous +200 hp activated with delay box
Also 727 Transmission is build from mine
All drums billet
Billet pistons
Full manual valve body
5500 stall ultimate converter
Rear end is 8 3/4 with detroit locker with 4.10
Stock leaf springs
Caltracs zero preload
Subframe connector
Rear shock is qa1 all soft
Front drag shock 90/10
Tires is 28/10,50/15 MT drag slick

Best Et 10,33@135 1.53 60 ft

My goal is 9,90 ... With nitrous activation before .. And monoleaf !

Will be happy for any advice !!

Thanks !