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The stack has to be matched to the machines drum weight, if you use someone elses stack(dyno computer module), you'll get whacked readings.


My friends bought both of their dynos new from Dyno Jet...... complete with whatever electronics were needed to go along with them.

68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads