If everything is on your motor is still factory stock, then the dampers on valve springs indicate it is a hi-pro engine. I'm not sure but I believe the hi-pro 360 used the same cam as the 340 which is .430/.444 lift 268/276 duration. Having said that this motor is over 40 yrs old it's hard to be certain if anything has been changed on since, it does have an aftermarket intake.