For the car in the sig, here are my times from the local track the other night. It was at sea level, more or less, and upper 80s. Tires are streets with 30 psi. It's running pretty rich also.

I'm still getting used to the t56 and I can tell it has much more potential with some good tires.

best run was 8.285 @ 85.844 with a 1.883 60'
2nd best was 8.435 @ 81.563 with a 1.99 60'
best mph was 8.639 @ 86.648 with a 2.119 60'

 

you need some 4.10's.

How much work is in the heads?

 

Not much at all. I think just a 3 angle valve job and gasket matching. I believe the bellows are smoothed a little as well. The intake also had some work done.

 

I had an almost identical run earlier this year
8.25 @85.75 with a 1.887 in 60' I ran 1/4 also the time was 12.802@108.36

the point is you probably have a 12 second car na

good job
where did "y'all " run at ?

 

Yay, 12 seconds. But we ran at Dorchester dragway off hwy 78. Not the best track, but the closest