Welcome to Club Hot Rod!  The premier site for everything to do with Hot Rod, Customs, Low Riders, Rat Rods, and more. 

  •  » Members from all over the US and the world!
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and hundreds of thousands of posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

 

Thread: Combo Help
          
   
   

Results 1 to 4 of 4

Threaded View

  1. #1
    Geezer2's Avatar
    Geezer2 is offline CHR Member Visit my Photo Gallery
    Join Date
    Aug 2007
    Location
    Dunedin
    Car Year, Make, Model: 1976 Cadillac Seville with 454 Chevy
    Posts
    421

    Combo Help

     



    Building a 489" BB Chevy and need to have good vacuum. My combo is 4.280 Bore with a 4.250 stroke. I'm planning on using Edelbrock RPM heads, a Performer RPM dual plane with an 850 Double Pumper. My cam choice is either a Comp Cams Hydraukic Roller with 230/236 @ .050 with.547 lift on int/exh. or a Comp Cams Hydraulic Roller with 244/244 @ .050 and .612/.612 lift.

    I need first hand knowledge from anyone who has used either of these cams as to vacuum at idle.

    Woukd like to have 14-15 inches at idle. Hell, I'd like to have 14-15 inches period!!
    Attached Images

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Links monetized by VigLink