okay fellas,i'm all done with the refurbishing of the ole starfire,my auw dry is 12lb.,it is now refitted with a bransy new os.91vrdf large head,it took alot of work making a new fan hatch but its done! a few? i have i probably asked already but i want a success after breaking in the motor,1- is i'm using the same tunedpipe that was on the .77,yea or na?2-is the 24oz.tank is in the canopy about a little higher then center of carb,15in.away,with a 2oz.header tank on side of fan shroud,tank is fitted for pipe pressure,fill will be done threw header tank where i have a T and will pinch off the line to carb when filling,and cap off T when filled,is this workable? and the most important ? is seeing that i get the engine to run and all other systems are ok,where is the COG? also what about flaps! will this bird handle rog without? and how about landings without flaps? how slow will she slow down without dropping? i do have df exp,its just been awhile(12yrs) i have byron mig-15(*****cat)byron a-4(hairy) and a parkinsons reagal eagle supreme(nice flyer) under my belt,but they where all pushers! never no exp,or have i ever seen any tractor type df run! all help is deeply apreciated! oh and one other thing,at this time i did not put in a inflight air/fuel mixture,how critical if at all is this? i consider myself a good engine tuner,thanks,john