So I have a 65 coupe that I autocross and daily most of the year. I went and found a 65 Fairlane with a hipo 289 and bought the car for $500 pulled the engine and resold the body with the trans in it for $500. So I made it out ok but now I'm doing a moderate build on it and I'm trying to choose a cam. But nobody seems to be modifying their hipo 289s unless they are simply taking them to gt350 spec. So what I'm looking to see is if anyone knows what the largest cam that I can use in the hipo with stock pistons. And what would be the best cam for a street driven autocross car with a T5. I'm open to any and all suggestions the machine work on my rotating assembly will be done on Friday so I'm hoping to buy a cam soon to get this car back on the road and the track. Thank you everyone on the forum!