Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - manifolds
Thread: manifolds
View Single Post
  #4 (permalink)  
Old 10-14-2012, 06:04 PM
techinspector1's Avatar
techinspector1 techinspector1 is online now
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 12,212
Wiki Edits: 326

Thanks: 595
Thanked 760 Times in 650 Posts
Quote:
Originally Posted by gaurdian101 View Post
i haven't got the cam back from machine shop but it's going to be like 274 comp cam or some where around there and the car is a buick 78 buick regal street and 6 months out of the year it's going on the strip once a month in our little town
So, 6 months out of the year, it's a 100% street car and the other 6 months out of the year it's 10% strip and 90% street. Does that just about sum it up?
You'll be bracket racing, so your E.T. and trap speed won't matter. Consistency is the most important thing in bracket racing.

What I'm leading up to here is your choice of intake manifolds.
The operating range on the Holley 300-25 is 4,500 to 7,600 rpm's.
The operating range on the Edelbrock Super Victor is 3,500 to 8,000 rpm's.

The operating range on a 274 cam is roughly 1,800 to 6,000 and the motor needs matching parts. Use an Edelbrock Performer RPM. Do not use the Air Gap model if you get some cold weather where you live.

Building a motor is all about using parts that complement each other in the same range of rpm's. The RPM makes power from 1,500 to 6,500, about the same as the cam.
Reply With Quote