Carb recommendation 408 stroker

[mbaird]

I calculated 10.63 to 1

But yes we have 95 and 98 octane at every gas station

It appears your Octane ratings are a little different there. Shell V-power is 100 RON according to a quick google search
which is equivalent to 93 Octane here. So if your calculations are correct you should be good.

 

[forphorty]

Holley 650 has the same size throttle plates as a 750. You can make your 650 into a 750 with one of these : https://www.summitracing.com/parts/pro-67100c

 

[yellow rose]

Holley 650 has the same size throttle plates as a 750. You can make your 650 into a 750 with one of these : https://www.summitracing.com/parts/pro-67100c

This is the least expensive option for the OP. That 650 has no place on anything other than a dead stock 273.

 

[360duster]

Hi, so you are near Dornbirn? Maybe you know the Seppi Guys...i run ProET with them. Think they are from there.

Regarding the fuel: Mbaird is right, our octane numbers are not the same as in U.S. I suggest to check the compression calculation again.

Regarding the springs: if the comp springs have the same dimensions, i´d trust them more than the springs supplied with the heads.....

Michael

 

[1974scamp]

Hi, so you are near Dornbirn? Maybe you know the Seppi Guys...i run ProET with them. Think they are from there.

Regarding the fuel: Mbaird is right, our octane numbers are not the same as in U.S. I suggest to check the compression calculation again.

Regarding the springs: if the comp springs have the same dimensions, i´d trust them more than the springs supplied with the heads.....

Michael

Yes Lukas Seppi built my transmission

I also thought i will use the comp springs.