98 12v twins 3rd gen style 62 65 and s480

hey guys im goin to start working on my twin set up i have a 3rd gen style 62 phatshaft going over a columbus diesel s480 anyone ever did this? My 62 has 4 5/8 flange not hx40 jw if i could get some help on piping it. also i got a milled head with a side draft intake anyone ever made ic pipe for one? any positive input is appreciated

goin to add whats done to the motor get some pics up sometime

studded top n botom and arp rod bolts
mahle pistons flycut 250 bowls inlarged 16 to 1
head p and p flows 250 milled intake with side draft intake
hd springs n pushrods
shelbina 180 pump 4 gsk flowed 410 with stock dvs n no plate
full cut dvs 93 holders and lines
5x18 injectors 260 bar
adjustable timing gear at 20
billet tappet n front cover
prolly forgeting something think of it later lol