I can see a few issues here.
#1, aftermarket valve covers, where is the PCV valve? If I am looking at it right, your valve covers are installed upside down, which could have a clearance issue.
#2, don't ziptie your plug wires together. This can induce "crosstalk", where the power running through one can induce power in an adjacent one, causing that cylinder to spark out of time. This can either be harmless, or potentially lethal to the engine. Use plug wire separators.
Those are the two real glaring issues.
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1988 9C1 - Modified LM1 @ 275HP/350TQ - TH700R4 - 3.08 8.5" Disc Rear - see it at
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2005 Crown Vic P71 - former AZ DPS - 4.6 liters of pure creamy slothness!
1967 El Camino L79/M20 old school asphalt raper
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