MN_samurai I live here! Posts: 996 Joined: Nov 04, 2006 Logged i have a question concerning the proper air gap between the distributor cap terminals and the rotor button terminal.how much air gap is needed? how much tolerance is there?also... how does one measure this air gap in a real world setting as the cap and rotor need to be installed on the disty to get proper centering or is there another way? please explain as i am not getting it.reason i am asking is i am trying to install a side terminal Honda disty cap, samurai or Honda rotor button on a 91 swift vacuum advance disty. please do not try and tell me the gtx turbo cap will fit because it is WAY too big around for the 8v disty.. i know because i ordered it in along with other caps that have been suggested and all were way too large of diameter. the parts i am trying to make work were sourced by going through every single cap and rotor on hand at my local parts house and trying them for fit and selected the "closest" to fitting.i am just getting frustrated with this and need some guidance or help.