Well if you want straight spark plugs for header clearance to use parts you already have...MP "aluminum 452" but I'm not sure if MP even still sells them
as most of the product line has been killed off.
i think these are the MP452 heads. it says they are straight plugs and they list a MP part number for cross reference. they are also on clearance... https://www.manciniracing.com/edperpmcyhe9.html They certainly don't flow the 290cfm as claimed on that page!
'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
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