Multi-throttles are pairs of parallel throttles which look almost
identical to carburettors, but without float chambers. All our multi
throttle kits use throttle bodies with idle for fine adjustment
of idle mixture & balance. They
are available in 118mm standard Long type (the same length as a
We are also asked regularly about the difference between direct to head and twin/parallel throttle bodies, they both produce about the same performance, although the direct to head has the manifold cast into the assembly which makes it neat to look at. The advantage is that the separate inlet manifold and throttle bodies is that they are more suitable to mounting throttle linkage kits, they can be fitted where the throttle bodies join the inlet manifold either above or below depending on customers preference. The direct to heads only have provision to mount the throttle linkage underneath up against the air filter backplate mounting.
These types of intake systems, although produce reasonable performance, we consider to be the basic throttle body types, where if you are looking for ultimate performance either now or in the future, you should look at SBD taper throttle body designs.
The latest development of our taper throttle body designs comes supplied with a simple cam design throttle mechanism ready to accept a throttle cable, the inlet manifolds also include the most up to date port shapes. We are always working to improve the performance of all our engine kits and the new port design matches perfectly with our latest CNC cylinder head work, however even if you aren't using our cylinder heads you can potentially gain advantage by matching your cylinder head to our inlet manifolds. Certainly all those who have purchased our taper throttle body systems are
extremely complimentary about it and the reports are continually coming
in with very positive results.