Thinking of using Pacesetter LS1 Fbody long tube headers

[russellrox]

I have found a good deal on a set of new pacesetter LS1 Fbody headers with free shipping in Canada from tdotperformance.com. I had seen a post about someone using these on their LS swap into their 60's c10. I have a 66 c10 with a 79 chev crossmember, installing a 5.3 with 4l60e. Anyone have any info on how these fit or if there is any modification needed. Figure since Fbody stock manifolds fit the best, then these should work just fine.