spark plug heat range

35regal said

i need spark plugs for a street/ strip motor, 340 , 11.1 compression, eddy mildy ported heads, solid cam 244/252@050, msd 6al, timming all in 1600rpm, 750 dbl pump, 4200 stall, 93 pump. thanks!

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Autolite AR 3924 is a good starting point but I run NGK plugs cause they have 2 plugs for one heat range in a Champion and Autolite so you can get your heat range more precise I dont waste my time with Champion plugs either.