65 Valiant small block with Heddman fenderwell headers. Need suggestions on master cylinder upgrade

I have Headman Hustlers on my 66 Valiant with an aluminum Mopar performance master cylinder. I had a stock iron master cylinder from my 72 barracuda before the aluminum one and the #7 pipe almost touched the master. The aluminum has an inch of clearance. To avoid boiling the brake fluid, i added a heat shield from Mancini Racing.

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