i'm currently building up my 289 this is what i have so far.. 600 edelbrock carb, performer RPM intake really heavily ported 289 heads, tri-y's, 4 speed, and a 3.80 rear..i have a performer RPM cam to put in too but i'm not sure if i should go with something better i was thinking about switching to a comp cam part # 31-226-3..just looking for some input so if anyone has a better cam suggestion than either of these let me know!