Both the '86 B2000 and the '87 B2200 have the same gear ratios according to my repair manual and the owner's manual. The '86 had the carb and header mods in early 2000, and showed a very noticable improvement. Engine had 130k miles at the time. Now has 190k miles on engine, biggest problem is occaional carb iceing.
"87 B2200 was intended to replace Ol' Reliable. Engine was proffessionaly rebuilt 20k miles ago and carb and headers installed at that time. Emissions plumbing has been recently removed as an experiment, but mileage hasn't improved, nor has top speed. Town mpg is 19-20 and highway is 23 compared to 25 and 30 for the older truck. B2200 will not exceed 4000rpm in 5th gear. Thanks,
Thursday, February 22nd, 2007 AT 8:11 AM