True horsepower?

ir3333 said

O.K....a '69 340 at 275 hp was at the crank,no accessories
and a '73 340 was 240 hp at the crank with accessories?

Click to expand...

And the major tuning differences were the Scr and ignition timing

In 1971,mine went 98mph @ 3330 pounds, that calculates to 247 hp. Pure stock,70Swinger 340 4-spd/3.55s, including the E70-14 polyglass tires..It had about 12,000 miles on it.I brought a trophy home that day. I turned 18 that summer.