Yes AFM...
Thanks guys for your replies... the motor seemed fine both before and after the crash. The car has 110 thousand Jap K's on it and was happily making 10psi all day...
One thing I thought of is the muffler is a bit squashed... that may have an affect i will remove the cat back system then try again. Also this new noise from the head is a mystery too... could a valve be stuck open or something to be causing it just cause it was sitting for 3-4 months.
Otherwise... hello GTE