Those size of heads will hurt your take-off power in an auto... you DO NOT need that large of heads on your 351! I thought of going to aftermarket heads as well-my brother got windsor jr's pocket ported and the adjustment in the sparkplugs made it impossible to have normal sparkplug boots.... he had to go to porcellin sparkplug boots to keep from headers melting them. Just some heads up... i'll write to you more about this subject... delay on the windsor sr's ... TOO big for what you want and the cam is too big for decent power in low-mid range... and carb is too big... your car weighs about 3400lbs... too heavy for those mods
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'63 Merc Meteor hardtop, warm 302, C4 auto, 2.25" Flowmaster Exhaust,
'65 289 heads - ported/chevy valves, performer cam, edelbrock f4a intake, full length hookers, 600 holley, roller rockers, k'n, 10.5:1 hyperutetic pistons... mid 13's hoping to reach into 12's
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