Detonation and general abuse are the most likely culprits. I have proof that #4 cyl has seen detonation over the years. Flow in the intake is pretty bad on#4.
I`m wanting a bigger cube and less compression like 10.5 or so.
Any opinion on 383 blocks?
70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas 9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ! 2013 StickShift Challenge Winner@ Mopar Nationals!