hi mate,
performance ford fitted a JAMSPORT HEAD with PIPER 285T2 cam and matched inlet to there project series 2 and i also have the same conversion on my car.
on the performance ford car it gave an increase of 48 bhp and on mine it gave 46 bhp.
is an excelent package and doesnt spoil the driverbility at all.
JAMSPORT CYLINDER = £470
PIPER 285T2 CAM = £250

ring jamsport on 01604755529 and see what they recomend.