Those readings look pretty good. Boost at 20 is probably about right with a chipped stock injector truck, could maybe be a little more. Just make sure you don't have any boost leaks, uppipe leaks, etc. You will need to upgrade the hpop with the injector upgrade. T500 from Joey is a very good hpop with a good price.
Darin 99 ranger 97F250 66 fairlanes
"TheBeast"1997F2504x4dually4.10's,160k,140VIDM,HPX,4-5"dp, S366 turbo w/wicked wheel, AFE, elec. fuel,rosewood stage ones,php hydra,arp studs, comp springs, smith brothers push rods, adrenaline hpop,riffraff res,melling lpop,180 tstat,6.0 fan and IC,trucool,coolant filter,scan gauge,lots of other gauges,racer x valve body and billet converter, upgraded trans, F550 leaf springs,SD dual tensioner upgrade, cold ac mod,OBA,38gal