read the other day somewhere that you cant use dome piston with the airflow heads is there any truth to that.if so i will be set back on the motor projeck for awhile.

That is described on AFR's website. Only a custom domed piston would work.

Where on AFR's website?

Originally posted by JUNK YARD DOG:
read the other day somewhere that you cant use dome piston with the airflow heads is there any truth to that.if so i will be set back on the motor projeck for awhile. This is correct, the 68cc AFR head is not recommended for a dome piston.
AFR actually recommends that you get the 74cc head & mill it as it will out flow the 68cc one at lower lifts due to chamber unshrouding.
The 68 cc head is a lower cost alternitive to having the 74cc head milled to what you need & is still an excellent head but the 74 is the better option performance wise which is supposed to be why you are buying a top of the line head in the first place ;)

http://www.airflowresearch.com/support/sbc_install.htm

Originally posted by onovakind67:
Where on AFR's website? http://www.airflowresearch.com/

"The 68cc chambers are designed for flat top or dished pistons; domed
pistons will require additional machining. "

thanks guys i went to the sight and read that also, but only on the 195s so i sould be alright with the 210s .there was no warnings on them.i will put them on without head gasket to check for valve clearance and piston hitting head also