going for the air box plenum

[mgglep]

right after much deliberation, research etc i have decided to go for an airbox for my motorbike carbs. i have made an air box and rolled the front cover so it is rounded in shape i have also tapered it so it speeds the air up i have included a 75mm opening at the front which works out as a larger area than the 4 openings on the carbs i am going to use one of these at the front

http://www.ebay.co.uk/itm/89mm-Inlet...#ht_2047wt_932

it should be interesting to see what and if it makes any difference to the performance or sound of the induction i will put some pics up as soon as it it finished.