1971 and later Ford: 429-460 V8 Turbo Thrust Tunnel Ram Special Single Quad Open-Plenum Top Only
BOAT RACERS . . . . ATTENTION!
At last! A high torque top for engines needing more at the lower R.P.M. ranges mainly for Jet type drive units yet maintains perfect performance at top R.P.M.
Carburetor recommendation is 800-850 CFM for Prop Driven and 650-77- for Jet Drive.
A whole series of COMPETITION Manifolds designed to suit your particular needs. Tested and proven to outperform other so-called top performers, these combinations appeal to not only the professional, but also to those who demand the finest performance performance products that can be purchased.
IMPORTANT: To receive the maximum performance from your OFFENHAUSER TURBO_THRUST manifold it is very important that you do not modify the top in any way!!
Our reason for suggesting this is that after hundreds of hours of testing with many types of flow systems we finalized with the design that is incorporated in this unit. The center space bar is very important to stabilize the internal flow of this manifold through all stages of R.P.M. To modify in any way will definately be detrimental to the efficiency of this engineere4d manifold throughout all R.P.M. ranges.
* NOT LEGAL FOR USE IN CALIFORNIA POLLUTION CONTROLLED MOTOR VEHICLES.
Copyright © Phethean Racing Products ( Offenhauser )