I ran 10.8s @ 123-124 in a 3100 lb. duster (with me), had a very mild iron headed 451 low deck, that was with very sad 60ft. times as well (1.61-1.62), the car had high 10.6s in it, the FWHP on this build was around 460-480, with your build & weight, if you get the 60fts. where they should be, very low 10s should be easy, if not high 9s, i'm being concervative at that #, what ever you do at this point, "MAKE SURE" the suspension is dialed in!! This will make or break your times, get the car too leave & hook, then the rest is in the bag, at your HP & weight, you should be in the 1.3s on the 60ft., even if its around 1.36-1.38 range on the low scale, i ran a best 60ft. of 1.51 & i still needed suspension work bad, i should have easily been in the 1.48 range, all i will say is after the engine is tuned in, suspension, suspension, suspension!!!!!!!!
I will add, get it all dialed in, THEN spray it if you want, that should solidly put you in the 5s 1/8 mile with wheels high.
