I was told that if you can not afford a set of AFR or any other type of aluminum racing heads that a set of 1969-1974 351 heads would be a nice set of budget heads for the stroker motor. I was also informed that a set of the GT40 heads would be nice as well. Is there any suggestions out there? I am a college student on a budget and really can not afford the $3000 for a nice set of aluminum race heads so any suggestions?!?!