Fuel injector? kinda curious...

Guys I just got done completing some upgrades on my otherwise stock 302 motor and was wanting to know would I benefit from running 24lb injectors and using a 24lb mass air flow meter on a engine that is using GT40 iron heads with 1.7 roller rockers, 302HO camshaft advanced 4* and a GT40 Explorer style upper and lower intake setup? Do I need an adjustable fuel pressure regulator to run 24lb injectors? If I do need to use an adjustable fuel pressure regulator what kind of pressure do I need to be running with the hose off? at idle.... I already bought this setup off ebay and hope to have it installed on my next day off any thoughts guys....

http://cgi.ebay.com/ebaymotors/ws/e...STRK:MEWA:IT&viewitem=&item=160151071520&rd=1

Thanks,
Jason

Well I did put the 24lb's in and the 75mm MAF meter and the truck is bucking at low speeds and fuel is being burnt out of the exhaust so do I need a tune or what else can I do to be able to run these new 24's?

Do I need reset the computer for these changes to happen...

Can I buy an adjustable fuel pressure regulator at a local parts store...?