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5 & 6
Hi,
Cylinders 5 and 6 will detonate it timing not pulled out enough under boost and have a mess. I would put head studs in and torque heads properly with O ringed head gaskets. Pull 1 1/2 degrees of timing out per lb of boost and start your initial timing at 10* stock. Turn the fuel pressure up to 43 lbs. 
Perry
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F5 cobra Mark 4 roadster, Ruby Wine Red with pearl,
dual 2" roll bars, warmed up 302, E Street aluminum Heads, Comp cam and roller rockers, AOD, 4.10 Eaton Possi, Power Baer/disc brakes, block hugger headers, 2 1/2" under car exhaust, F500 18" black spoke wheels.
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