Thanks Andy, sorry for being unclear, the black stuff is actually what seems to look like oil/fuel, wish I had your mile long straight for the plug chop, might just jump on the freeway, at a spot with a nice uphill and at the right time it might be quiet and police free, If I manage I'll let you know, till then I probably need to unrestrict the air box since I have already done the splice, is it safer perhaps to drill less holes for a start,thanks for the info.