Paul, finally getting my new intake together, to find that my
runners are now 22 inches long. What effect will this have on
performance? To shorten them is just work (more again) so will run
the motor with the longer runners to see what happens, and if dodgy,
can shorten and actually see what difference it makes.

Neil.

A lot depends on where the throttle butterflies are.
The shafts and plates (even when wide open) tend to disturb the tunning.

Got any recent picture of the intake system?

Paul Lamar