You can remove the rack and make a couple of adjustments referenced in the pump tuning section. It is not that hard to pull the pump, just set thye engine on #1 @ 24* it will be easier to pull when you have the filter housing off. The adjustments are not hard, just takes a little patience - document, document, document is also recommended so you have a reference point to return to.
1982 300SD: 304,xxx Super M-pump with 7.5mm elements, 265 Nozzles, GT35 water cooled turbo, M90 Supercharger, A/W Intercooler, Serpentine drive belt, 3" SS exhaust with Magnaflow muffler, 240 breather, AEM dry Filter, Manual Boost Control, EGT / Boost / EMP gauges....Moved on to other projects
1995 F-350 7.3L PSD: 230,xxx 6.0 IC, DIY Stage 1 Injectors, 17* hpop, Tony Wildman Chip, John Wood Trans, 6.4L TC, 3" down pipe, 4" straight exhaust, 310 HP on wheel dyno - 8500# dually: 0-60 in 6.98
Suzuki Samurai: VW 1.9L TD, Trackick doubler transfer case (made by me) 5.8:1 transfer case gears, YJ springs front and rear with rear missing links, wheel base extended 14", diffs welded, some day a VNT.