thanks guys! im very appreciative for all of your answers. im wanting to stick with a production head to save money for the time being. i was considering the magnums because of the 1.6 rockers and the better flow than an LA head straight from the start. id say lift close to .550 with the 1.6 ratio. im new to picking out camshafts for performance. im a mechanic but mostly do stock repairs aside from simple cold air kits and such. im wanting to put this into a 70' duster ill be starting a thread on this weekend. bought it for $250 and it came with a v8 k-member manual steering four speed hump and linkage and best of all an a boby 8 3/4 rear for it! its going to terrorize local cheby and ferd dominated car shows. shell be far from original and comfortable but shell be fast and mean