Which engine better to turbo 5.0 vs 4.6?
I am looking at getting the best bang for my buck. My choices are the SN95 body either the 5.0L in the 94-95 years or the 96-98 4.6L. A few of the 5.0L cars I am considering already some mods like heads and/or intake so they already have inj, Pro M or C&L MAF and upgraded fuel pump should I reuse that or get new higher capacity inj and fuel pumps? Is the stock cam better or does the F cam or TFS cam improve the turbo performance? I have read lower numerical gears like 3.27 are good for turbos but will 3.73 hurt performance dramatically?
One of the 4.6L I was looking at has the newer PI motor and the other has a 98 4.6 4v Cobra swap, and disadvantages with any of the 4.6L's? I want to keep the bottom end stock and leave the top alone if I can but hoping to get into the high 12's, have DD driveability (only warm weather driving) and keep the mpg's good.
96 Mystic Cobra (work in progress)
07 GMC 2500HD Classic 6.6L D/A
06 Mercury Mariner Hybrid
95 GT 5.0L TFS heads, stage II cam, Track Heat intake, full length, H pipe, 4.10 gear (sold)