Re: Boost on a stock Cleveland
my two bits , i run a 6/71 on a 2v cast cleveland that already had near 100.000klms on it and also toploader and 3.5 gears .
All i did was go over the ignition and make sure it was spot on ( stock bosch electronic ) , changed spark plugs for two ranges colder than factory spec , run the engine on pump 98 ron ( usually Shell ) , fatten up idle mixutres ( 2x 600vac ) and she's happy as a clam 6.5lbs boost and wont drive in a straight line . Static comp at 9.2 : 1 ,fuel pressure at 5.5psi idle , check plugs after punishment and blow by through tappet covers , all good so far .
No two engines are the same but a good cooling system and keeping the revs to no more than 5800rpm seems to agree with it