Anyone ever have their 383 dyno'ed? Just trying to get a idea...

[PRHeads]

Hey Dwayne, it's Todd that looks like my 383 you freshened up back in 2013, I remember the numbers 470 torque and 492 horsepower! It ran awesome but only with 410 gears or lower! Lol

Yup, that’s yours.

 

[383man]

Awesome ET! What heads were you running, and did you tweak them?

They were 452 iron heads I milled for a true 9.5 comp as it ran on 92 or 93 pump. I did some mild pocket porting (bowl blending) on the heads but kept the stock 2.08 and 1.74 valves. Thanks for the kind words. Ron