what is the biggest aftermarket camshaft i can get for my mid 80s chevy 305?

Bradley

New member
im doing a mild build on a 305 in my s10. i will later put a 350 in there and hopefully change everything over when i do. but what is the largest aftermarket cam as far as lift and duration and intake and exhaust i can put in the motor before having to worring aboutvalve clearance and having to put better valve springs in. im not worried about the idle either. i want the motor to talk to me.
 
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