can vouch, is that spelt right? for the t25 distributor unit. been running one now for several years, fit and forget.
but let me say there isn't any noticable difference between the generated spark from good points (mechanical) and electronically (semiconductor) you won't see any real difference in running/performance unless you have a badly setup points system (dirty, adjusted badly or dodgy condensor). they won't and shouldn't be used to cure starting issues.
simple electronic modules will only remove the hassle, if it is hassle? of setting points now and then. i have vehicles fitted with simple modules to complex pure electronic distirbutors. there has never been any real difference in starting/running of them compared to what it was like with points. note points systems were 100%.
if you have flat spots, missfires etc. these need to get sorted. fitting a module will not sort them. it's a different issue.
just to be pedantic, the curve would be right with a third party unit too. as the curve comes from the mechanical/vacuum centrifugal characteristics and not electronically. i'm talking the little points replacement modules here.
also just to be devils advocate, you wont see any difference between a t25 electronic unit and any other simple third party unit. so if you can get your hand on a t25 system for next to nowt, go for it. but if not get a module from a third party.
even those maplin modules for under a tenner are worth considering if you are on an absolute budget. and who isn't nowerdays. will relieve the points from all their workload, making them last forever really. potentially allow for lower resistance coil and a bigger, or is it smaller dwell, whatever; you can have the points closed for abit longer giving more time to build flux in the coil. the latter two just mean a bigger spark really.
beauty with these little modules that replace the points etc is that it's dead easy to go back to points if it breaks down, and you do too as a consequence.
electronic is convenient and allows for improvements unavailable with points. but for a standard application only difference will be not having to set points ever again. but set your points with a periodic service and you'll not have to worry about those either
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