Re: Intermittant losses in power

["Paul Hunt" <paul.hunt1@blueyonder.co.uk>]

Concentric throttle return springs is about the only advantage in the HIF.
The separate choke mechanism is more to go wrong and has its own O-rings to
deteriorate and leak, plus another on the bottom cover, plus other ports in
the body to block.  And the poppet valve is a positive disadvantage.  I have
HSs on my 73 roadster and HIFs on my 75 V8 and it is always the HIFs that
have given me problems.

PaulH.

----- Original Message ----- 
> This is one reason I've always preferred the HIF design.  Other
> reasons are the concentric throttle return springs, the separate cold-
> start enrichment ("choke") circuit