valve hitting the piston timing is dead on

[92lazerturbors]

ok i just posted and all of my intake valves are hitting the pistons and that is why my rocker arms broke. the timing is dead on and i heard that the plate that goes behind the crank pully could be on backwords, how do you tell? I am sure that the timing is right the head was milled 4 millimeters and im running a felpro head gasket standerd thickness. i am getting new rockers and lifters and new cams and another set of valves i dont know what cams yet. im thinking of the crower 264/264 combo but the motor is stock but i plan to do a full build up as soon as i get out of college. so my question is what would make my intake valve hit my pistons even after i ground on the valve reliefs wtf.

 

[19Eclipse90]

Thanks, guys, for reviving a nearly 5-year old thread.

 

[JusMX141]

Grave-digging to the extreme.

LOOK AT THREAD DATES, PEOPLE.