I've heard all the scares about the Poncho rods before... I'm going off an article for a 400 written by Marlan Davis, published in Car Craft several years ago. The write up claims stock Pontiac rods, fitted with arp bolts, properly prepped and balanced in conjunction with a 2 bolt main block with ARP main studs will hold up to 600hp...
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"Keep your foot hard on that pedal
Son, never mind them brakes
Let it all hang out 'cause we got a run to make!"
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