XF installed figures, at the flywheel.
164 hp,
121 kw,
335 Nm of torque.
Power out put was about 25% higher than the 131 hp carby six, with a good deal more low speed torque.
Ranking, say, a 2-door VH Valiant Charger 2-bbl against an EFI XF results in the Valiant winning, even with a 3 speed manual. A good Pacer will see 15.9 second quarters. The best XF Spack will give 16.4 seconds. The Multi Point injection was just a means of coping with the bitter pill performance Ford owners had to swallow when Ford ditched the Cleveland, and then failed to endorse the 200 kw AIT Turbo in 1983.
Single Rail Borg Warners are able to hack 1729 kg 351's with 162 kw with ease. It's only 300 plus hp (224kw) that kills them. All E49's ran them, so did 200 kw (268 hp) Turbo Falcons.
Early XF EFI's had optional wide ratio Borg Warner 4-speed single rails, later had optional wide ratio Non World Class T5's (made in Australia by Borg Warner).
Valiant and Falcon gearboxes can be transfered, but you need to be carefull over the alignment and do something with the different rear mount. The Valiant bell has to be used.
The wide ratios of all XF on 4-speed Falcons were great for heavy emmision clad Fairmonts in Melbourne, but a pain in an engine like the 265 Valiant. The best gearbox is an XE 4.1 EFI....a modern day incarnation of the D-code Four speed BW found in the Charger E49. The ratios were much closer on TC-TE Cortinas, and Vee-Eight 302'S, and pre XF 4.1EFI's. XB-XE 351's have the same BW single rail, but with intermediate gears that are even steeper than the E49.
The Cortina 6 shifter places the gearbox further forward, and I guess the stock Falcon shifter is the best for the Valiant.
