The best way to match a turbo to an engine isn't to say "____________ turbo is the best for a 4.6". Each particular engine/vehicle combination requires a different turbocharger. Call Turbonetics, Garrett, MHI or other turbo manufacturers and they'll match a turbo for you just as comp, crower etc will match a cam for you.
B Team - More skill, more results. A is only a starting point before progressing to B.
Member of the 'B-Team'. Finishing jobs the 'A-Team' can't handle.