HP estimate...opinion needed.

[67_C-30]

Originally Posted by Dm1pfoy1

I appreciate all the help I really do, thank you. It is a noticable lope at idle. Thank you for the additional build info. Truck is not a dd so i may look more into upgrading cam similar to your above post, I will at least getting port work done with valve work as well.Your numbers posted are what im kind of shooting for. Not to many places to lay it out and get to 6k aside from on ramps lol. Again thank you for your help its been very valuable if you do know of any other cam #'s that you can think of i would love to know. Thanks again im going to take what you gave me and dig a bit more.

Not a problem! The biggest thing with choosing a cam is totally dependant on what rearend and converter you are planning on running. A cam too big for the gears and converter will likely slow down the truck from where you are now. Any cam with bigger than 220-225 duration @ .050" starts getting into the arena of needing a small converter, especially with power brakes. That just a general guideline, but its pretty accurate. You are able to get away with a little in a 383 than you would a smaller cube SBC.

If you can get your heads flowing in 230 cfm range (which is pretty easily doable) and upgrade the cam, you can get to 400 HP fairly easy with the stuff you have.