There are failsafe products so when it does run out of meth or nozzle gets plugged.
Just an example http://www.snowperformance.net/product.php?pk=13
You do not use too much fluid,it does last a while.
If you plan on flooring it everywhere you go & do not want to refill tank a lot. Get a 1 gallon size tank.

I just use my windshield wiper fluid tank.
My full size truck has @ least a gallon size from the factory.

Here is the definative answer as far as using a MSD retard box.
It cannot sense or hear detonation ,so when your engine is detonating while using a boost retard box ,the MSD will only retard timing for what you set it to,so in short,,,it will not retard your engines timing to save it,just retard timing you initially set it to.
The J&S will hear/sense knock & will pull timing out accordingly.
http://www.jandssafeguard.com/

What answers are you getting from other forums?

As far as cast stock 250 or 307 pistons,they will hold up to about the same amount of abuse,which is not too much,especially when super or turbocharging & detonation happens,they will fail very quick w/detonation & forced induction.

I understand about being on a budget,but if you are going to bore an engine ,install new pistons,@ the very least, do yourself a favor,save some $$$ & buy forged pistons & good rings.

Also,if this is your only car & you are insisting on supercharging it,,,,it's manditory to purchase & use a methanol injection system @ the bare low cost MINIMUM!

Some sort of knock sensor set-up that can retard the engines timing like the J&S would be my other bare minimum.

1) Methanol injection system
2) J&S.
Hope you realize how criticle this is to have on your car,it's to save/protect your only driver.

MBHD


12 port SDS EFI