Here is my 100 thou shaved 186 head witness mark picture:-
Witness Mark.jpg 24.28K 8 downloads
this created 250 psi compression on a 202 short motor with a big cam. Dave I
p.s. the witness mark is at the bottom left of picture where the head gasket goes
p.p.s. the chamber is 44 cc
Edited by TORYPOWER, 06 October 2013 - 05:33 PM.