Originally Posted by ballbag42

have you also tried the composite spacers i sell that go in between the inlet man and the head,weve used these under race tempratures and weve had upto 18 deg difference between the head and inlet tempratures the car used was 540 bhp and was running a full t6 set-up,i sell these for £70 ,im only in gosport hants if you fancy a trip to the wshop next weekend let me know,if you send an email address i will forward some pics thanks neil NC motorsport