Hi I'm riley I'm new and I'm just needing some expert advice on my 390 build so thanks for your time and here's what I got

390 bored .30
650cfm carb
4 hole spacer
Probe pistons 1.765 4cc
D2teaa heads milled 65cc 2.09/1.66
275deh cam @.50 213/232. 275/285 514/541 110lsa
.020 gasket
Stroke 3.78
Rod length 6.486
Deck clearence .029
11:19.1 compression
Full length big tube headers
2.5 duel exhaust flowmaster 40s
C6 stock stall
3.25 gears