Mac's Install... questions
 

I'm getting ready to install a set of Macs next week and was hoping someone could help me with a few questions. Search function availed little.

1. Will I need o2 extensions? If so, how many? When I was about to install LT's, some said that I only needed one for the passenger side. Is this still true with the Macs?

2. I've ordered a new set of GM gaskets, but have heard that I can reuse the stock manifold bolts. The difference is that my car has 115,XXX miles on her; would anyone suggest I can still reuse them?

3. I'm a header virgin; any quotes on the amount of time I'll need on this?

TIA,

David

Thanks! Excellent write up

I didn't need extensions when I installed the MACs. I also re-used the factory bolts with no problems. I have Stage 8s on my LTs, though...

I didn't use extensions, but the driver's side was pretty tight. I reused the stock gaskets and bolts, everything seems fine. I installed mine totally by myself on jackstands in the garage and it took about 12 hours over a weekend. I could probably do it in half the time now that I've done a set.