yes the chip will further improve your shift points since the 4r70w is electronically controlled. Get the chip and you will be pleasently suprised. It really wakes up or big girls.
1988 Lincoln Mark VII
Paxton Novi 1000 6psi kit, 30lb injectors 73mm C&L, MAF converted A3M, gt-40's, Felpro headgaskets, 1.7 Cobra RR's, typhoon intake,1 5/8 shorty headers, off road x-pipe, and full mandrel catback, electric fan, 3.73's, TKO 500, pro 5.0 shifter
372.4hp / 394.6tq 5psi
Rest in Peace Joel R. Bender.
July 30, 1979 - March 26, 2006