Some new and aftermarket EFI ECUs require 3 rotations to reference TDC/trigger, that's why they crank a few.
Carb cars when properly setup can start on a 1/4-1/2 a rotation.
The 461 I had in the LeMans with a holley, 2 pedal pumps and touch the key when cold, hot required no pumps. If it went 2 or 3 rotations I would stop cranking and try again.
That's not after sitting for a while though, but it would work the same if it only sat for a day or two.
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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
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