Veg oil

[hennus]

The most torque comes at around 3000rpm for these engines when stock so I wouldn't be revving the arse off it anyway. More revs = more heat and more wear.

Thanks mate. I figured out the culprit- there was a major vacuum leak coming from where a rubber hose meets the intercooler. Essentially I had no boost as manifold air pressure could not increase! Re-jubilee clipped it and now it's pulls a lot nicer. Still after a Bosch pump though!