@panteradoug these are actually metal inserts in the heads…
and even if there would be a concern that they could lose… It would be rather easy to pin them from the bottom..
the head conversation I trust.. the intake “upgrade” …. Mmmm not so much… I think I make it a normal chromed Edelbrock performer intake… I don’t want anybody to buy that thing and something happens
there are 2V intakes out there.. but the heads are special..