ok personal experience with this truck I have to post about it.
I have a 427 ported and polished engine in my truck and it rips pretty good.
My buddy has the Mach 28 with no reverse and things are lightened up a bit also.
With the exception of the engine and a Carbon Mugen clutch my truck is all STOCK.
They both run the same in a straight up drag race
the one without reverse does feel lighter under the trigger finger but they are the same on the top end.