How to make a 307 fast

Olds 307 and 403

Well-known member
Oct 4, 2018
Melville, Saskatchewan
I don't like it, it might actually live a long life. Time for twin Torque Storm time! Glad I don't a valuable car like a Hurst/Olds, it would be tempted to try Mark's billet 4" stroker crank in the numbers matching 307.

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