what is a reasonably decent max valve lift I can go on a set of heavily ported and modified J heads with kb hyper 107 pistons
and what valve springs to go with it?
I have a set of solid roller lifers I may use also.
I am looking for someone with technical experience on high lifts with kb 107 pistons and or J heads.

365" Iron J heads,,3480lbs best 1.39 60ft on SS springs.10.54,124 mph ...6.67 1/8th et.average 60fts 1.46 w/ small cam &.063 no2 pill tagged & insured
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