has anyone or does anyone know if it would b worthwhile to add a turbo kit to a sbc 307. . i have a 400 block i wanted 2 buy 2 swap but have heard wives tales about them. . id like 2 stay creative and a little unique if possible. . i have been looking at this turbo on ebay "GT3076S Turbo" that says it fits 283-400 size sbc'z. . anyways i was just wondering if anyone with a b iut more knowledge could help. . id either save a bit more for the turbo kit which comes with the intercooler or just buy the 400 in and see how tht works. . which one would save more gas??