Christ, it's been 4 years since the oil pan's been off of that engine, and about 3 since I've had the receipts stating what's in it.
"Hell if I know" in all honesty... The engine falls flat on it's face at 6500 or so, but that's partly ignition, partly heads stop flowing.
Get me a set of heads (I'm leaning towards holley) and a new cam, pull it out of the truck and bring it down to calgary from my house and you've got yourself a deal.
For the time being, I'm saving my pennies for a set of assembled heads, new cam and a base for a 6-71 (small, I know, but can we say free?)
With a 900 stall converter, the engine would roast the tires from a stop into 3rd gear (through a 400, and 14 w/5.13's)
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84 Chev pickup, 91 blazer.