[Rebel1]

Heidelberg, sadly, that's the situation anywhere in Australia. We just cant register with any of the older carby engines.

The authorities view our cars as if they were a new vehicle off the showroom floor so they must comply with the various emission standard relevent to each state.

Take yours' truly for instance. I am currently installing a KOFF!!!! ... ermmm ..... chevy type engine, This is despite being a dyed in the wool ford fan, having a 302w, a 5Ltr and a 351w in the shed.

Now ... and I'm not pushing the chevy bandwagon but if 427 is a magic number to you then have a look at the chev LS7 or the LSx engines available at a very reasonable cost.

If you just have to go ford then your choice is the 4.6 or 5.4 Ltr engines but I think you'll have problems fitting them in the engine bay. Not impossible but is a bit sqeezy.