Slow 1/8 with 74 440 dart

318willrun said

Spark plugs can read rich/lean. But the strap will also tell you where your initial and total timing is and if it needs more or less or one or the other.
Love to hear your 19 and working on a Big Block A-body. I just love it! I wish you were closer, I'd love to help you ..

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for sure, next spring i'll get some run time and shoot you some pics of my plugs. i bought this car 3 years ago for 4000 bucks with the 318/904 and all. going to the track a few time's influenced me to do more to it. although looking back i would've just build a 360 for it because damn big blocks are tight in an A body.