i'd really like to see what combinations people have used & what results they had. i'm involved in 2 383 engine builds atm, one in a 72 cuda & other in a 69 A body ute/pickup 3200lbs.

cuda has ported 516 heads 2.08/1.74 valves new Klines, springs retainers locks from "hughes". tm6 inlet 1" spacer 750dp hood scoop
purple 509 cam timing chain, kb +.030 -6cc dome hyp pistons with arp rod bolts. 727 & 8 3/4 3.23 . no converter or gears yet.

69 A body pick up
indy ez 76cc heads 10.7:1 static comp, heaverly ported street dominator manifold 3"spacer, 750dp 68 hemi dart scoop.
1.6 roller rockers, mopar .577 cam. 564ish lift after lash ( ez heads 295 cfm @ 550" lift from hughes site" & 252* @.050, 110* ls. 4*advanced. arias -12cc domed forged floating pistons on prepped std rods & crank. arp r/bolts, main & head studs. block is resleeved on all 8 cyls & 1/2 filled. all balanced as well as 1/2 oil pick up & deep pan . 3500 stall reverse pattern shift 727 alloy pan & braced 8 3/4 3.9 gears.
this is the info i have on my ute & friends cuda both have headers & 2 1/2" mandrell exhausts. both arn't built yet so i got no advice on these. though can tell you my ute went best 13.4 & 104mph with 3000 stall 3:55 bw 6cyl diff 26"225 tyre & worn out std 383 w/std 906 heads custom 509/511" 312/318* 108*LS cam. worn out whole timming system .0105 piston clearence, ultra low compression, unported street dominator 1" adapter 750dp. but couldn't set timming.