[Tigers] F4B or Cast 4BL Man

[Jeffrey Nichols]

Here is a link to a comparison on different manifolds for a 302 :
http://www.jason.fletcher.net/tech/intakes/intakes.htm

Low RPM HP
Ford cast iron 141.4  HP @ 2750 rpm

Edelbrock low rise performer 136.1 HP @ 2750 rpm

Edelbrock F4B 138.0 HP @ 2750 rpm

Max HP
Ford cast iron stock  HP : 215.1 @ 4500 rpm

Edelbrock low rise performer HP : 233.7 @ 4500 rpm

Edelbrock F4B high rise HP : 231.0 @ 4750 rpm

High RPM HP
Edelbrock F4B  219.3 HP @ 5500 rpm

Ford cast iron 197.8 HP @ 5500rpm

Edelbrock performer 188.6 @ 5500rpm.

Edelbrock F4B  219.3 HP @ 5500 rpm


Either Edelbrock manifold will make more HP than the stock Ford manifold.

                                                                             
  Jeff