hi recently my car starting smoking quite bad. on deaccleretion. i am running stage 3.5 regal map. i have had head gasket tested and a comprssion test done everything seems fine. but its smoking quite bad any 1 got any ideas wat it could be?
also i have lost boost. i have got no boost leaks and turbo (turbo only fitted 400 miles ago) is sound any one help with the problem?
could it be the vaule guides? cheers tom