This is not your specific set up but Dave has stated the Crane 99893 spring set up for his Old Faithfull hyd roller cam were typically at 1.800"-1.820". And stated at 1.800" they were about 145-150 lbs on the seat.
He stated he actually rates the spring for small solid roller use as well with a 1.750" installed height. At the 1.750" he said they were 165 lbs on the seat. Note he stated "small" solid roller cam.
Looking at my Crane Cams spring chart for the 99893 it indicates at 1.850" they rate it at 130 lbs and at 1.900" it is rated at 112 lbs.
And Dave always maintained these springs lose pressure after run in and with use.
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/
Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE
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