Spending adds up quick!!!!! I'm building one as we speak....oh I am helping my sons build mine....simple 455. As I am noticing about prices. A balanced rotating assembly CAN be worthwhile $$$$. 1st step is evaluating what you have to work with. Does the motor currently run well? Your limiting factor is going to be those 115 cc heads as that kills your compression. For a simple motor a roller cam is WAY more expense vs result. Sad part is you will have $600-700 in a set of cast iron anchors just to ensure it actuall lives because if you have them off...your instantly looking at $200 for valves, $230 valve job, $150 for guides (and mods for cam lift) THEN you still got to cut n clean.
Now there are so many performance OPTIONS your wallet is the only limiting factor of what power level you want to be at.
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