the original gasket i cut out was too thin. however when usin the thinner 1 when i covered the throttlebody the engine, for the first time, started strugglin to breathe which tells me that its defo that!so hence me makin thicker 1s! the new gaskets r on,ultrathick,also found some loctite sealant shit that I've fucked on there for good measure so I've left it to dry. streets very dark now so will start her up 2moz mornin wen i get up and hope this is the end of it. but wen i put the thin 1 on and blocked the TB it defo for the 1st time ever,started strugglin so im hopin the much thicker diy gasket is the solution. defo a massive step in the right direction