1st reason is I like the HP lettering and I can say although it has a later model motor it's still a 60's motor.
2nd, I like it at the drags when they say"in the left lane we have Leon from seven hills with his 179 powered FC holden. although it is really 192ci
3rd, I dont want to go through all the hassles with blue slippers and engineers again.
a blue 3.3 block has to comply with the adr's of the year of the block.