Just a thanks to everyones advice on getting a bit more hp out of my 440.
I ended up going with the lunati voodoo 702 cam lifters and matching springs. (Had a comp cams 268h)
Home ported a set of 516 closed chamber heads, 2.14 intake valves and 1.81 exhaust valves with a 80cc chamber (had 906 heads)
Replace felpro .050 thick gaskets with .020 mopar steel gaskets.
Comp is now 9.1 to 1
End results is a huge improvement. Could not be happier with such little changes.
Took a mate for a drive and his comment was " f#ck me what did you do " haha.
Have not run it on a dyno or anything but if you mash the loud pedal anywhere in first or second gear it just fries the tyres and thats with a 4 speed manual 3.23 diff gears and 255 tyres with a posi. And it sure didnt do that before.
So massive thanks to everyone