You may want to look at the air fuel mixture the noise may be engine knock predetonation
Just a thought
Rick
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You may want to look at the air fuel mixture the noise may be engine knock predetonation
Just a thought
Rick
#8475 Complete Kit Delivered Nov 2014, started Nov 2015, Street Legal Apr 2016, Paint and Interior Completed Aug 2017, 390 BBF, March accessory kit, MSD Atomic EFI and Ready to run, TKO 500 with MidShift kit, hooker headers, 3 link, track lock with 3.55, sway bars, power steering, wipers, heater