[Keithc8]

I have found that the quench area is not that big of deal on boost applications unless you are trying the to get the most on pump gas. If that is the case then you will need to be at about 8.5 to 1 on the compression and no more than 10 PSI unless you run an intercooler then you can go to about 15 PSI. We do a chamber that is about 88 ccs but you loose a little of the quench area. The cubic inch of the engine will also dictate what you will have to do with the piston and chamber size. If you want an un-touched 427 styel chamber like the Edelbrock 6008 has you will be looking at about 80 ccs. We take the 6005[72cc] and then run a chamber program on it to get the 88cc chamber.

Thanks, Keith Craft