extending ram air on trans am hood

I am making a replica of my car. Its a 1982 trans am. I have an aftermarket hood which has the newer trans am ws6 ram air scoops on it. I bought a ws6 model today, and see that that hood isnt as long as the 82 one. So i want to extend the scoops.
I am pretty much a beginner modeler, but ive made probably around 10 models. I havent gotten too sophisticated, which is why i have no idea how to do this. I have contour putty, which maybe i could use as bondo.. but i havent used it yet, so i dunno.
Any suggestions that a beginner like me could handle?

Use styrene, and blend it into the hood while matching the contours of the scoops. Use as little putty possible.

can i get styrene just about anywhere? i read that it is a plastic that can be formed with heat. so i am guessing i heat it until it starts getting soft, lie it over the scoops, then just add it to the hood? it'll be sort of hard since the scoops angle outward.. the outside edges are never parallel. Like i said, im a beginner. I dont exactly know how to use putty, unless its as easy as squeezing out of a tube, formed with a finger or round object, then left to dry and sanded later. i read that from the contour putty tube.
Thanks

can i get styrene just about anywhere?


Hobby Shop.


i read that it is a plastic that can be formed with heat. so i am guessing i heat it until it starts getting soft, lie it over the scoops, then just add it to the hood?
Form it without heat. Use .030 sheet, bend it to fit the contour of the scoops. You could also build it out of three seperate pieces for each scoop. Two sides, and the top. Once cemented all together you will be able to fine tune it with a sanding stick and sandpaper.


it'll be sort of hard since the scoops angle outward.. the outside edges are never parallel.

This is where building out of 3 pieces would work well.

Like i said, im a beginner.
Gotta' start somewhere. Look at people's build ups using the search feature to get some ideas on how to form styrene.


I dont exactly know how to use putty, unless its as easy as squeezing out of a tube, formed with a finger or round object, then left to dry and sanded later. i read that from the contour putty tube.
Thanks

Stay far away from contour putty, or any one-part putty for that matter. I much prefer using a two part putty. Usually an automotive polyester putty (not Bondo brand) or epoxy putty.