Mods to the head are lumps,1.94- 1.60 valves. Cam is comp # 62-000-5 gross lift at .584- .584 duration at .050 244-244 109 separation.grind # c62 5214/5214 h109. Running an old coan I had on a big block car that stalled at about 5000 in front of a 1.76 powerglide. Don`t have time slips with me right now , but best out of 6 passes was 12.19 at 110. shifted at 4800 with rev limiter set at 5200.Started out with 600 vac secondary , then to a 950 hp with lead at 36, it seemed to like it. thanks
Did you flow test the cylinder head?
Who did the work on the cyl head?
What is the compression ratio?
950 CFM carb is too big I.M.O., better off using smaller multi carbs, side drafts, etc.
Does the engine seem like it wants to rev, or does it vibrate a lot?
What damper are you using?
MBHD
