What's the old axiom?...
"Opinions are like a$$holes?"...
You'll find an equal amount on both sides of this fence. I lean towards the use of torque plates on a pplications where your after every iota of power. The theory for their use is sound. But like your old timer said, it's mostly centered on "Chevies" & other makes that have more than 4 bolts per cylinder. Those 400 SBs have thin walls. By comparison Pontiac's have more meat between the cyl. wall and bolt holes & only 4 bolts. Thereby producing less of the distortion.
I would be interested if anyone has some comprehensive factual testing about this.
You will find a Pontiac torque plate HARD TO FIND! In most areas. I have yet to find one in the entire Chicago are? So guess what, my 500-550 HP 428+ build-up will be w/o.
But, I'm not too concerned. It'll have enough kahunas to make up for the minimal loss (if any).
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