Basically if your doing a A B test of heads in which one has a faster burn rate chamber then that head will tolerate the making of a bigger quench / deck clearance if formed by dropping the piston.
Installing and setting up a long reach plug which provides a faster burn rate while needing less timing goes a long way towards dealing with the bad effects of having a tall deck height.
There are other chamber shape factors that come into play here also .
It’s been found that sharp traditions from a chamber floor to the chamber wall will collect fuel that burns late and can make for a second flame front lighting off which is part of the definition of detonation.
Agitation that a tight quench clearance provides does not help with a late burn issue from fuel pockets like I described above.
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!
1) 1940s 100% silver 4 cup tea server set.
Two dry rotted 14 x 10 Micky Thompson slicks.
1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.
Education is what your left with once you forget things!
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