The best way to keep it down is to drill holes in it and your fenders and ties them together with zip ties but it sucks because you don't want to ruin the plastic.

 

u can also adjust your front plastic mounts. if the hood wont stay in place, chances are the front plastic is tweaked out of position a bit. under the hood, there are 2 mounts, just loosen the bolts, and move the fenders as you need to make the hood stay put. then tighten.

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I drilled holes in mine and used colored wire ties. It looks ok.

 

heyy i have the best solution to your problem i bought a 2000 scrammy and the guy actually used a hood pin off his stock car right on the middle it works great looks good and theres no way its ever coming off any way hope that helps and happy ridding