I get what you are saying, but the W5 has a raised intake port. And, it uses an offset rocker. That's a big departure from the stock passenger car architecture.
I may be all wet, but i bet that TF head on a “ trick” shortblock and with a 2.05 valve will ultimately get within 50 horse of an all out W5 deal.
Guy i sold that car to has been 9.60’s at right at 140 at 3200 pounds.
Admittedly in East coast stellar air. Got there by gas porting the pistons, another point in compression, more aggressive roller, and 130 pounds less race weight.
That deal was dyno’ed at 705 ish at Best Machine. About the stoutest W5 deal i know of. ET slips back up the pulls. 140@3220
Someone will find a little something in that TF over how its shipped. Guy on Moparts said it liked a 2.05 valve and some touchup work to the valve job