I had a real hard time finding one around here to check my World hemi block a while back. Finally found one at a smaller race engine shop (Naylor's) about an hour and a half drive away.
Even Gene Fulton and PAR don't have a sonic checker...said they don't need one for anything they do. Naylor said he only uses his on certain cylinder heads for round track classes.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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