[Healeys] KISS

[sebring at illawarra.hotkey.net.au]

FWIW at our club meeting last week we were given a talk with Q & A session on 
old BMC sports cars. This man has run his own repair business,engine overhaul 
shop and designed and had cast cross-flow heads for A-series engs. that gave 
approx. 30HP improvement.He passed on the following. Ethonol may give higher 
octane figure but a higher volume of fuel is required. This may be achieveable 
with computers and knock sensors etc. but may not deliver the goods with 
SU's.Fuel consumption will be worse. It is also acidic and in some proportions 
can affect zinc, rubber and who knows?
Valve seat recession, best practical control measure is to carefully set the 
valve clearences and then a closing gap indicates seat wear, otherwise keep 
driving.
Joe