340 Build.

had a similar combo in my 73 duster 340 .30over pop ups close to 11-1 j heads ported by me some what ok job 2.08inx1.60ex roller tip rockers 1.5s prws had to clearence them hitting retainers 528 solid purple shaft 700 double pump on air gap style manifold 1 5/8 headers and 3'' ex/ mufflers 4.10 gears 727 with 32-3500 stall on foot break ran 7.7 all day long in the 8th with bad 60ft 190-95s idled at about 1000rpms and always got a double take sounded wicked it will make you smile so go for it