How much would aluminum heads help?

Im just wondering how much a set of tfs street heads would help me pick up
I know it wont b exact Im just wondering if it would b a tenth or a second I really dont know

engine
545''
d1ve block
scat 4.5'' cast crank
scat 6.7'' rods
probe 22cc forged pistons
dove heads 2.25 int 1.75 exh no flow #s
10.8to1 cr
frpp c460 cam from lem
frpp lifters
lunati voodoo roller rocker

I doubt it would slow it down any lol. The weight loss is a plus, and you'll have something to grow into. Good investment IMO.

I'm trying to decide if I should save and get a kit for 150 shot or save longer get heads then later get a kit

heads will have the power there all the time.........you gotta fill bottles..........

Get the heads first/ imo

Any clue if it would pic up runs 6.70 ish now

I guess it depends how much the other heads are "gettin in the way"

Yeah I was thinking that also dont know there 400 dollar ebay heads lol

Generally just slapping different parts on without a plan yields money lost and disappointment.
Aside from the few pounds of weight difference, the only advantage to aluminum heads is a reduction in detonation risk at high compression.
Come up with a plan, make it come together, and you will be way ahead of most.