the heads are stock ka and the cam is a 496 280 duration. pistons 60 over forged trws.miladon high volume oil pump with a 6 quart oil pan.with 1 carb 750 it turned 5000, with the 2 750s it turns 4800. went 2 stages leaner on both carbs and had to put in 1 stage hotter plugs in..in think its to much for my basic stock set up. but it sure looks good with 2 carbs sitting there.
To be able to support the twin 750's, that poor Olds would have to turn in the area of >6500 RPMS to even be close....
The twin 500's would be closer to the magic 5,200 RPM, still awfully high for the Olds
Without
extensive oil side enhancements, you are playing with a time bomb running an Oldsmobile that hard...
Most Berkeley style jet pumps perform and load the best at <5,500 RPM...(Just my humble opinion).
You can turn them
much faster, but proper loading, proper bearing and wear ring set up and attention to details need to be addressed...(Think "throwing a lot of time and money at it")..
My neighbors little Tahiti has a 455 with a Wiend tunnel that has two 650's with a progressive linkage set up and it runs right to 5,100 RPM with a Berkeley A like it is set up with a governor.
Never really a problem until the oil heats up.....(no paint left on the oil pan
)...Then has major breather losses.
We have installed oil restrictors, flow limiting pushrods, modified stock pan, stock passenger car oil pump (Low volume with a 100#bypass) and hogged out the block on the oil passages...I think it has flat top pistons, but can't remember, something is telling me 10:1 compression, but could be FOS.
GT
