1.5 vs 1.6 rockers?

[joshua dewitt]

la318 built up, 0 decked .30+pistons, #302 casting heads, ported, msd, 100 shot nos. 8 qt oiling system. arp bottom end. has a a904 lock up(hwy).. 3:55 gear with 28" tall rear tires.
mopar perf. resto 340 cam and lifters....... what are any of you guys recommendations for rocker arm ratios.... 1.5's or 1.6's ? has anyone done it with this cam combo?
daily drier and or play toy...

 

[Hipo65]

I like the 1.6 raito to speed up the valve events a little bit & a bump in lift. it seems to help some with low end TQ. Be sure to check how close the push rods are to the cyl head with the 1.6 rockers. Ive had to use a die grinder to give them a little clearence so the push rods dont rub the head it dont take much to clear. My crane iron 1.6 rockers work great in my 273 with isky E-4 cam it has. Before i rebuilt my 273 i put in the E-4 run real good with stock 1.5's! after rebuild i re-used the same E-4 cam & lifters (only ran it about 3 months tops) only with 1.6 rocker insted,noticed a little more grunt across the board.