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You're not going to get there with any stock cam, but he's already said they run a custom cam.
Stock castings on heads specific for year. Has a cc rule on runners and chambere. Cant have any obvious port work or grind marks, can fill heat crossover on head only as long as not used to shape port, stock valve size for engine, stock spring diameter, screw in stud and guide plates allowed, full roller rockers with stock ratio allowed, if engine stock with flat tappit lifters has to have them and gotta be stock diameter, intakes have to be stock year and number for make and model of the car, same with carb. Pistons can be forged but nhra aproved stock design with no more than .070 over size, stock design with stock size ring groves in stock location, rods have to be stock length. Crank can be forged but has to be stock stroke with +or- .010 tolerance. Cam cannot be over stock lift at all but duration and lobe sep can do whatever.
I dont think anything i know. We have 327s, 305s, shipped to Sweden, have engines all over.
You have that backwards, 70 lt1 was factory rated at 375 and was highest hp sbc until 96-97 LT4 was rated at 376.
So you are or aren't allowed to port the heads? I call BS on 697 horsepower on unported stock heads. You can show dyno sheets all day long, but it doesn't take a whole lot of horsing around to get a dyno to lie. I'll "believe" you if you include a wink and a nudge when claiming 697 horsepower on a stock motor.
