hi my head gasket give up monday night so stripped it tuesday an found the head was knackered luckily i had a ford gasket an another good head so swapped everything over fitted all back together no probs only thing now when coming onto boost as i comes in its as if its over boosting an popping but was running more boost before gasket went with out this problem i closed the bleed valve before takin car on the road.

could this be a simple problem of needing a good set of plugs an leads? i know the car needed setting up anyway before gasket went (luck it went now an not on rollers) but i would like to eliminate it before i go on rollers car is still driveable just not really boostable. any suggestion welcome thanks.