Intake Manifold Notes

There is limited clearance for tall intake manifolds.  Listed below are the specifications, restrictions and necessary modifications for various manifolds.


Distance from the crank centerline to the valley flat: (The plane that A and B are measured from)

302 Windsor: 8.5"

351 Windsor: 9"

Performer (non-EGR)
  • 260-302 Windsor, A=3.5", B=4.75"
  • 351 Windsor, A=3.4", B=4.75"
Performer RPM
  • 302 Windsor, A=4.3", B=5.5" - Drop-based air cleaner. 
  • 351 Windsor, A=4.3, B=5.3"  - Drop-based air cleaner.

Edelbrock Air Gap Manifold

  • 302 Windsor, A=4.3", B=5.5" - Drop-based air cleaner.  
  • 351 Windsor, A=5.3, B=6.2" - Machine 3/8" from carburetor mounting surface and use drop-based air cleaner.