whats the spec on your engine dave ? i noticed the sbd, is it the ex vauxhall 16v engine ? andy at AMT has a xe engine and modified a pug 16v head to fit, it puts the inlet to the front and it flows its tits off, he's mapping a xe16v turbo in a nova van for totb next week, he ant built it, but i heard that its quick, its got 200bhp shot of gas as well.