Re: valve rotators
I wish i could help, but i used the same (stock) retainers on mine, and used comp cams springs. (dont remember part #)
Only thing is, it could have thrown off my installed height, but everything works good, my car pulls to 6k in a hurry.
but i think you might need a machine shop to do it, (unless you have the tools) so they can measure, and shim if necessary.
good luck, and trust me anything works better than those stock springs.
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X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's.
race weight 3,160
12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear
13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear
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