you will also be needing an ATB then to put the power down. hope that engine is in good nick, it will be pushing it at 300bhp for sure. BAM bottom end, forged pistons, lower compression to run high boost. it will certainly find the weak spots. paddle clutch ect. ive already done a drive shaft, inner CV joint. can be a weak point on the golf's when useing high output.
alot of work there, hope its still drivable round town fella.