DIY reverse intake manifold valley cover???
So please correct me if I'm wrong:
1: I can flatten the cover (without milling) and use the spendy adapter without modifiying the LS3 intake.
2: I can flatten the cover (without milling) and use the cheaper adapter and modify the LS3 intake .
3: I can mill the cover recessed and use either adapter without modifying the intake.
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How difficult is the modification the the LS3 intake? Can you just heat it up with a torch ever so slightly untill it is bendable and push in a bit for clearance or do you have to cut out and patch the hole?
Thanks






