cap and distrabution block
 

now can i install the cap before getting to the distrabution block or do i need to caps one for each amp?

Yes you can instsall the cap before the distribution block. Generally you need about 1 farad for every 1000 watts. I think the better way to go is the big 3 though.

Yeah, the BIG 3 is always the best (and cheapest) way to aid in power 'flow/upgrade' for your system. It should always be a start point for moderate + systems. If you think you 'require' a cap (do a search on opinions), it should be inline (ideally) with your sub amp, as it draws the most current. But installing it before the distro is ok as well. Happy listening.

i was running a .5 ferrad cap for 200 watts rms 400 max and lights still dimmed now ill be running 2 amps to power my new kicker L-5's 450 watts rms 900 max each soo i have a 1.0 ferrad cap and a .5 cap was thinking on running them inline before the splitter or buying a 5.0 cap just for kicks off ebay and i am thinking of a deep cycle batterie what do you think ?

Cap might help, but like everyone else said, upsize wiring, get a bigger alt.
Then, and only then, a cap might help.

Don't put a band aid on a cut that needs stitches.

Don't put a band aid on a cut that needs stitches.[/QUOTE]

Exactly.

i am running some 4 guage and will be buying high out put alt and a deep cycle batt

Big 3 first - no questions. It's cheap, simple and it works. At the very least, upgrade all of your grounds (and/or add a few larger new ones).
As for an alternator, a HO alt would be nice, as it would provide all the power to the car and system and would probably last longer than a standard off the shelf rebuilt jobbie, although it will cost more. NOTE: if you install a HO alt without doing the Big 3, you'll be wasting some potential/time/effort, etc. It's like having a muscle car (re: big engine, hp, displacement) with 13" discount tires - you'll never get the full performance potential. I may be off a little here, but I think you're getting the idea.
OK. So we're looking at less than 10 ft. of 0/1 awg wire and terminals, a fuse or two and an hour or three. Pretty cheap. You should see results. Then I might consider a new deep cycle battery. The exide orbital (Canadian Tire) is popular and priced well. Or a yellow top. Do a search (I really looked into it; the boys on this board were very informative and this is what I came up with). This will give some reserve and lifespan. And they're much more resilient.
If you're still killing things or just want to go all in, then take a look at an HO alternator - one that fits your needs. Shop around (again, research well), as this will easily push the $300+ mark.
I hope this helps.

yeah i know this will take some money but thats aboute the only potential my car has soo its gonna get done i will have to look into what size fuse ill need also

I have a MRP-F450 and a MRP-M650. What do you reccomend either one 5 farad Stinger caps before the distributor or 2 3 farad Power Accoustiks right close to the amps after the distributor. My amps are at opposite sides of my trunk. Suggestions?