Helicoil on intake boot bolt.

[salty_monk]

Personally I would just use the 1 odd fastener if it's well done already... Especially if re-using the old boot as you say that has been drilled oversize too.

If you go crooked or two deep with a larger drill for a helical you could end up with a scrap head....

[tom203]

Personally I would just use the 1 odd fastener if it's well done already... Especially if re-using the old boot as you say that has been drilled oversize too.

If you go crooked or two deep with a larger drill for a helical you could end up with a scrap head....

Makes sense to me, but I always take the easy,lazy way out if I can!